Phew... this'll take me a few days to write up, I imagine, so bear with me as it is slowly completed.

I'm not sure where to start... You will need to have read Illyria's history and Oralle's history/motivations for this to make total sense, so I suggest you read those.

    * Kentharil, Illyria's half-brother, is disgraced in the eyes of Queen Amlauril. Leaves to study magic in Amn.
    * Despite his disgust for humans, he joins the Cowled Wizards, thinking that he could become powerful within the guild.
    * Realising that the Wizards were too corrupt to even understand, let alone become powerful in, Kentharil started to do plan his revenge on Illyria for stealing his mother away. They would both suffer. Muahahah.

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    * Illyria and Kentharil are arguing in Promenade, just after you get out of Irenicus Chateau. Kentharil and Illyria go off in different directions.
    * You meet Illyria in a tavern (Mithrest Inn?), she explains that she came to Amn in search of her parents, that she's from Evermeet, and explains who Kentharil is. You can offer to help her find her family, and she agrees to help you find Imoen, and she joins you, and all is happy and dandy.
    * Several dialogues follow, Illyria learning about the PC. Most responses add 1 to one of the path counters. She suggests <CHARNAME> visit the Council of Six building to find out if they know anything about her parents. Once there, she notices one of her mothers brooches, on a desk, and snatches it off. It costs 1000 gp, and Inspector Brega says he will look into it for you, but his schedule is tight so you'll need to wait several days.
    * Talks happen. Several days later, a messenger from Brega arrives telling you to come to the CoS building, because he has some disturbing news. Illyria panics.
    * Brega says that Sara and Baran moved in a rush, because their house is extremely messy. He insinuates that he thinks they were kidnapped due to the extreme disorder of the house. He takes you to their house, but now it is completely ordered, like nothing ever happened- Brega swears that it was messy before, and something peculiar is going on.
    * Brega has determined by asking neighbors etcetera that they perhaps moved to Rayen, or maybe the town of Trademeet.

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    * Illyria behaves a little strangely around <CHARNAME>.
    * After a period of a few days, Illyria begins to act even worse, even managing to look guilty at times. When asked about it, she finally tells you that she hasn't been entirely truthful with you. She believes that the amulet around her neck, given to her by Oralle, harbours a soul, and refuses to talk more about it.
    * She doesn't talk to you, and if you talk to her she gives you a snippy remark about not knowing when someone needed to be alone. 1 day afterward, she finally tells <CHARNAME> that the soul inside the amulet is of a Beholder... and that it talks to her. If you are a paladin or have Keldorn in the party, this is verified. The answer you give to this is one of the things that will sway her opinion the most; it will add 10 to one of the path counters.
    * More talks follow, about the nature of the amulet, and that Illyria doesn't think Oralle did it on purpose. You also discuss the morality of putting a soul inside an object, and several others things which will by varying degrees affect Illyria's final choice as to what to do with L'Sirr.
    * In the Underdark, the final decision as to what to do with L'Sirr are made.
    * This is where the paths finally come into play. Below are the 4 different paths for SoA, and below them the four different paths for ToB.

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Neutral Good Path

    * L'Sirr and Illyria decide that they would like to remain together, at least for a little bit longer. L'Sirr wants to know more of life, and Illyria is intrigued by the enigma that is L'Sirr.
    * L'Sirr tells Illyria that she is indeed 'bonded' to Illyria through an enchantment a powerful mage cast on the amulet, and Illyria wonders who his mysterious mage could be. She instantly thinks Kentharil.
    * While in the Underdark, a merchant is selling magic trinkets and other bits and pieces. In his wares, Illyria notices one of Oralle's intricate hair-decorative pieces, engraved with the older womans name inside. Upon questioning the vendor, you find out it was sold to him by a powerful Drow Matron. Illyria forces you to buy it.
    * During this time, Illyria develops a more refined sense of humour, and begins to speak with Mazzy, Imoen and Jaheira a lot more.
    * L'Sirr says she senses Beholder's nearby, and when Ardulace commands the party to bring her the eye of an Elder Orb Illyria and L'Sirr are furious, and after you get out of the building Illyria has a bit of a rant at you.
    * L'Sirr and Illyria promise to aid you for as long as you need if you would leave the Beholder's alone. L'Sirr may not like them much, but she still feels a need to protect them.
    * Illyria will leave the party if you attempt to get the eye of the Elder Orb. Once you have the blood of the kua-toan prince or the Master Illithid Brain blood everything proceeds normally.

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    * Once back on the surface, the Sages sense something horribly amiss with Illyria, saying that she is tainted with darkness. You convince them that she is no threat, but they say that if she causes anything to go wrong, she will be hunted down and killed.
    * Once you're out of sight of the elves, Illyria thanks you for standing up for her and L'Sirr, and tells you that it means a lot to them both.
    * You go to Trademeet, and after asking around find there are no leads there...Illyria asks you to go to the Council of Six building to find a map, so you can investigate the possibility that they moved to Rayen.
    * Brega adds it to your map, and mentions that he did a bit of research on the people connected to Baran and Sara. Illyria immediately thinks of Kentharil, and Brega nods, saying that he was a somewhat powerful member of the cowled wizards, but he abused his position. The Cowled Wizards are after him, though Tolgerias refuses to talk to you about it.
    * Travelling to Rayen, you stop for the night. Around the campfire, your party members discuss some stuff, and Illyria tells you all about her bitterness about Baran, and how she was both dreading and being excited about seeing her parents. Some banters between NPCs. Around 5 banters in all.
    * Arriving in Rayen, you ask around and find out that Illyria's parents live a little away from the village itself. Some of the villagers remark about them warmly, others less so.
    * You meet Saranan on the way to the house, on the forest path. She is absolutely shocked and extremely happy to see Illyria, crying that she didn't think she'd ever see her again. (Screen goes to black
    * Back in the cottage, Saranan speaks to Illyria about what happened to them, how they were forced to leave Amn by the Cowled Wizards. Illyria growls softly and tells her of Kentharil, and Saranan is shocked. It is at this point when Baran enters.
    * Awkward situation ensues, Illyria isn't sure how to react. She makes a bitter remark about how he 'abandoned' her, and Baran almost breaks down. He tells her of his and Sara's battle to stay on Evermeet, and how only Illyria and Sara had been allowed to stay. Illyria feels horribly, horribly guilty. Apologises muchly. Crying ensues.
    * The next day, Sara and <CHARNAME> go on a short walk through the forest. Sara tells <CHARNAME> how thankful she is. She says she knows that there is something bigger going on, and that Lyr needs to leave soon. Back in the house, everyone says goodbye and prepares to leave.
    * After you leave the house, Illyria thanks you profusely. L'Sirr, surprisingly, also does. Illyria smirks about something but won't tell you what it is.

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    * Another messenger from Brega tells you that Kentharil has been apprehended, and to be executed in 2 days time. This forces Illyria to take a step back, and think about Kentharil's situation. He also asks that you come to see him as soon as possible to arrange the funeral and inform any family members.
    * When you arrive at the Council of Six building, Brega asks you to come with him to somewhere more private so you can speak freely to each other. The place in question is a room out the back, which is guarded from all forms of scrying, divination, and technological means of eavesdropping. Brega tells you that he believes that there is something wrong with Kentharil's story, and that perhaps he wasn't working alone, or maybe that he was simply a pawn or puppet. He asks that you relate to him any information you can to him regarding the case urgently, and takes you back to the front of the building.
    * There, Illyria tells of her feelings about the matter; how now that she thinks about it Kentharil wouldn't abuse his powers simply to get revenge on his mother, no matter how bitter he was. She has no idea what she can do, though, and it frustrates her a lot.
    * Illyria worries that she won't be able to get the message to her mother, but L'Sirr says that she'll handle. She says that by combining some of her more telepathic-like abilties with Illyria's clerical power she might be able to reach Sara, and she does. She says Sara will be there ASAP.
    * Finally the day arrives and you are summoned to the Council of Six building, where you are to speak with Brega. Sara is there, and she also believes that Kentharil is somehow innocent. But, once again, there is no way to prove it.
    * Brega sadly takes them to a small cell where Kentharil is, for them to say their final goodbyes. Kentharil refuses to talk to any of them, simply stating that they abandoned him and he wasn't going to forgive them now, in his time of greatest need, when they will just betray him further.
    * You are taken to an execution ground, and Kentharil makes one last plea for his life. Illyria starts to cry, and apologises for not being able to save him, and for once in his life he forgives her. He is killed by decapitation.
    * Afterwards, Illyria is numb. Sara leaves, but Illyria is unresponsive. She has a 'blank' look to her, like she is completely oblivious to everything happening to her. You can approach this from several different perspectives; you can tell her to snap out of it, it couldn't be helped, or you can comfort her and tell her it wasn't her fault. Either way she snaps out of it, and apologises.
    * Everything is normal after this point, you have a few dialogues where Illyria half-regrets her feelings about Kentharil, and you discuss Oralle a bit.

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True Neutral Path

    * Illyria feels that L'Sirr is an affront to nature, and tries to block her from her mind. She becomes worried, because she can feel L'Sirr push at the barrier Illyria has erected in her mind, and talks to <CHARNAME> about it. She says she has tried to remove the amulet from her neck, but has been unable to- she's tried cutting it, pulling it (she has welts on her neck that demonstrate this), she's even tried to smash the amulet itself, but nothing works.
    * Several characters try to remove it via magic but it doesn't work, it only glows an angry red.
    * While in the Underdark, a merchant is selling magic trinkets and other bits and pieces. In his wares, Illyria notices one of Oralle's intricate hair-decorative pieces, engraved with the older womans name inside. Upon questioning the vendor, you find out it was sold to him by a powerful Drow Matron. Illyria forces you to buy it.
    * Illyria gets more desperate to be rid of the necklace, and finally calls upon her God to remove it. In doing so, it is destroyed utterly, and Illyria falls unconscious.
    * She wakes up, hours later, very lightheaded and unaware of what happened. Once you explain it to her, you realise that something isn't right- she says she feels fine, but there is something behind her eyes that seems... wrong. When you question her about it, she admits she feels 'empty', and if you liken it to the loss of your soul and explain what it feels like to her she says it feels similar, except there is still something there, it is just broken.
    * It is here when she begins to have more indepth talks with Jaheira/Cernd, and they discuss Illyria's imbalance.

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    * After exiting the Underdark, Illyria begins to become slightly reticent, her comments less frequent, and she turns into herself, becoming rather introverted. She requests that you follow up the leads given to you by Brega.
    * You go to Trademeet, and after asking around find there are no leads there... Illyria suspects foul play on Brega's part, for some obscure reason, and asks you to confront him about it.
    * If you confront Brega, he tells you that those were simply the two places the neighbors had mentioned, and that he suggests you try Rayen.
    * Illyria becomes a bit paranoid, thinking the other characters are out to get her- everyone except Imoen, Jaheira, and the PC. She has a convo with the PC that she's not so sure she wants to meet her family any more- upon questioning, she says she doesn't think they'll like whats happening to her- further questioning leads nowhere.
    * Upon entering Rayen, and asking the villagers where Illyria's parents' house is, Illyria pulls you to the side. There's a wild, scared look in her eyes, and she asks you what you think is wrong with her. Whatever you say, she tells you that she's going insane, and that there isn't anything anyone can do to help her. She storms off, and out of the party.
    * Jaheira, if she's in the party, tells you that she already knew Illyria was going insane, and that she suggests they go to Illyria's house. Otherwise, another NPC does.
    * Saranan is in the house, with Illyria, who is sobbing uncontrollably on her mother's shoulder. Sara tells the party to get out of her freakin' house, or violence will ensue.
    * If Jaheira is not in the party, Saranan teleports her and Illyria out of the house, leaving a timed fireball. It explodes, hurting and perhaps even killing some party members.

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    * If Jaheira is in the party, she tells Saranan that it is not the party's fault, and explains the situation. Saranan is shocked, and asks Illyria whether its true... Ilyria nods, not able to speak.
    * Saranan says that she could take Illyria to a powerful elven cleric, perhaps even ask the Seldarine for help, but Illyria says that she knows it isn't possible. She wants to go with the PC, no matter what.
    * Here there are some more options: the PC can let her go with Sara, and then the game continues as normal until ToB, or let Illyria stay with the party. Another partymember mentions the calming effect the PC has on Illyria, and Sara relents, but says that she will be there if Illyria needs it.
    * Sara pulls the PC aside, and talks to him/her about Baran, and how she thinks that Illyria isn't prepared to deal with it right now, and she hasn't noticed anything, so they will simply not mention it. She gives Illyria a small ring which she can use to stay in contact with her, so Sara can teleport in if needed.
    * You leave Rayen on Sara's suggestion, and the game continues as normal.

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    * Illyria grows progressively quieter towards most party members, which talking much more frequently to those she feels are trustworthy. She tells the PC that she knows it, and that 'it' is coming- though she won't elaborate on what 'it' is.
    * When the PC recieves a messenger from Brega, saying that a criminal who says he is related to Illyria is going to be executed, Illyria loses it completely. She doesn't respond to anything, needs to be force-fed, needs to be lead around by the hand etc. (voiceset changes, she says nothing- in battle, she has the effects of someone held or mazed).
    * If you keep adventuring with her, after a day Sara turns up, telling you that its Kentharil who is imprisoned. Illyria mumbles something, and Sara is very concerned about her. She asks that they go to the execution, but then says that she'll take Illyria to a monastery where they will care for her.
    * Talking to Brega takes you to the execution grounds, and his cries of innocence go unheeded as he is killed.
    * Sara takes Illyria away... and the game continues as normal, till ToB.

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Neutral Good Path ToB

    * Illyria is NOT summonable by the Fate Spirit, and must have come with you from SoA. (I'm considering an optional fate-spirit summoning component, but its a bit hard to work that due to the different paths- suggestions would be nice).
    * In the Woods, Illyria says that she feels uneasy, like someone is watching her- after the spirits have their little spiel, she has a dialogue with the PC about what it might actually mean- discussion about Alaundo's Prophecies, etc.
    * After you've had the talk with the Solar, Illyria hesitantly asks you what happened- L'Sirr could sense a powerful being, but Illyria was knocked unconscious. Talk follows.
    * If you summon one of Illyria's closer friends using the Fate Spirit, she'll have a quick talk with them.
    * After you kill Gromnir & are in the Pocket Plane, Illyria asks what happened, again. She reveals her suspicions about Melissan- she seems too good to be true. She recounts a tale of how a Bhaalspawn was once born on Evermeet, and was killed mercilessly while still a babe.
    * After you've killed Yaga Shura, Illyria says that something terrible is happening in Rayen, and she needs to get there immediately- how she knows she won't say, but if you read her journal you learn that in fact, it isn't Rayen thats got something wrong with it... its the Beholders, whose lair is very close.
    * Once you get to Rayen, Sara appears, as well as Oralle, who Illyria tearfully greets. If you got the items in the underdark, Illyria asks Oralle why they were there... but she remains tight-lipped on the subject. She tells the PC that the Beholder's nearby are acting strangely, and that he/she is to investigate.
    * Oralle says that she'll go in first, to check the danger, and doesn't give the PC time to reply.
    * Sara leads the party to where they need to go, yet Illyria already knows whats wrong- she says that it was *Oralle* who was acting strangely, and though she loves her very much to be wary of her- 'she isn't herself'.
    * Once you've disposed of the two Beholder guards in the hallway, Illyria/other NPC comments that Oralle is nowhere to be seen.. Illyria panics somewhat, asking if they can go ahead ASAP.
    * You continue through the strangely empty twisting tunnels, until it starts to widen out- wooden beams hold up the ceiling, and there are crates stacked around- there are some gems in one of them.
    * You get to one of the rooms, a large, pseudo-circular one- the floor has a strange design of an eye on it. Once you step into the middle, the screen goes black, and all the party is standing in the middle.
    * The screen goes to normal, and Oralle stands in front of you. Illyria is shocked. Oralle smiles slightly, informing you that the doors are all locked.
    * Illyria asks what Oralle is doing, and she goes into a spiel about her plan to gain power over the elves, and Illyria whispers to you that something is horribly wrong. She asks you to try not to hurt Oralle if possible, just incapacitate her so she can't attack.
    * Several Beholder's appear behind her, and more around you, till you're surrounded.
    * The Beholders attack, and disappears. Once you've defeated the Beholders, she reappears, and Illyria, crying, asks her if the Oralle she once knew was in there somewhere, to please help, not be controlled. Oralle just says that she is one and the same- it was a ruse, a lie. And Illyria lapped it up.
    * Illyria can't believe it. Oralle then leaves, summoning another Beholder in her wake. When the beholder is dead, the doors open, and the party can move onward.
    * In a room a few rooms on, Illyria tells the PC that something is DEFINATELY not right with Oralle- L'Sirr says something is wrong as well- there are no monsters about, the whole thing is just puzzles.
    * Oralle is in a luxurious room a few rooms on. She says that she has something to show you, but then a man appears. He reveals himself as Kentharil's father, and puts a 'hold' charm on Oralle. He says that he isn't fooled by her, and that he knows of her plan, but it will not work.
    * He says some stuff about the destruction of Evermeet, about how it was his plan and crap. He then says that he'll take Illyria, thankyouverymuch, because she is vital in his plans.
    * She says that she won't go, and L'Sirr will protect her, and Kentharil's father walks forward as though he will snatch her. Illyria then transforms into a Beholder, and he is all shocked. Illyria's gaze holds him paralyzed, and she releases Oralle, then collapses unconscious due to the effort, changing back into human form.
    * Oralle immediately attacks Kentharil's father, and a fight ensues- she'll only fight him, and not you. After he is dead, she uses a healing potion on Illyria, and Illyria wakes up.
    * Oralle hugs her, and after a brief moment apologises. she reveals that she had thought L'Sirr had been destroyed when she wiped the amulet of its other enchantments- Illyria is shocked. She tells Oralle to leave, and never show up in Illyria's life again, because it hurts too much. Oralle then speaks of how it had been her plan to destroy Evermeet, before she had gotten to know Illyria. And how she had changed her mind, after seeing how much it would hurt her. She says that she once loved Illyria, and still did, but she would honour Illyria's plea. She teleports out, and Illyria collapses weeping onto <CHARNAME>.
    * Some talks about Oralle follow.
    * In the master wraith sequence, Illyria sees Oralle, dead because of her.
    * A messenger reaches the party, telling them that Oralle comitted suicide several days ago. Illyria breaks down again.
    * The game continues normally.
    * The final talk happens just before <CHARNAME> destroys the pocket plane, after the fight with the Ravager. Illyria kisses <CHARNAME>, telling him/her she was so thankful for what he/she has done for her. L'Sirr also thanks <CHARNAME>, as well, and the fight with Amelyssan happens.
    * If PC decides to become a god, Illyria cries a bit, and hugs <CHARNAME> fiercely, telling him/her she will be among his/her first faithful, and that she will forever remember him/her forever.

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True Neutral Path ToB [Illyria alive]

    * After you've killed Yaga Shura, Sara approaches you, desperation evident in her eyes. She tells you Illyria's 'condition' has worsened, and that she has been asking for you... she also says the monks think that <CHARNAME>'s presence will calm her, and that if you ever cared for Illyria you would come to her side. She says Illyria is in Amkethran, in the monastery, being cared for by the monks.
    * If Jaheira, Imoen, or one of several other characters are in the party, they will have a talk with the PC once Sara has left, telling him/her that they strongly advise going to see Illyria. If <CHARNAME> does not, Jaheira will leave, telling him/her that even though his/her need is great, Illyria's is greater. (If she leaves, you can go to the monastery and she will be there waiting for you.)
    * The monks outside tell you that you don't have any proof when Sara comes out, thanking the PC profusely. The monks let the group pass through the gates and into the building. Sara takes you to a room where Illyria is lying on a bed, looking utterly terrible. Her hair, once brown and lively, hangs limply from her head- her green eyes are tired, but there is something more in them... something terrible. A look of utter desolation, of panic and loss.
    * She seems to come to her senses for a moment when she notices <CHARNAME> is there, and brushes her fingers along your face. She tells you that she has waited and waited, and hoped that you would come. She had seen them, in the mirrors, following her, coming to her, so she had known they would.
    * Sara seems somewhat alarmed as Illyria holds a somewhat normal conversation with you, as you tell her what has happened, and what is happening. When you tell her of the Bhaalspawn wars, a dark look crosses her face, and she tells you she has been 'watching'. When you ask how, she shrugs, pointing to a small mirror on the bedside table.
    * Sara takes you to the main hall thing of the Monastery, and strainedly tells you that this is the first time Illyria has spoken in... months.
    * This is where Balthazar makes an appearance. He is rather shocked to see you, and is incredibly guarded in what he says. He tells you they have been caring for Illyria, though her 'condition' has grown steadily worse since Sara brought her.
    * Balthazar tells you that he will see you anon, and leaves the room. Sara apologises for him, saying he is ever wary of Bhaalspawn. Seeing the surprised look on her face she laughs a rich, warm laugh, telling you that Illyria had told her much about you.
    * Sara asks you to take Illyria with you. If you protest, she tells you that your presence seems to calm her, and she would rather see her daughter out in the world enjoying herself than wasting away in a bed. If you say that she will be in lots of danger simply due to the PCs heritage, and if she can't function properly... Sara looks around furtively and hands you a jar of herbs, and tells you to put these into Illyria's tea nightly. She tells you it will help calm her.
    * If Jaheira or Cernd is in the party, they will tell the PC that it is an incredibly rare herb, and they weren't even sure it existed anymore... it was said to restore sanity to those who had lost it.

(UNFINISHED, obviously!)