Spoilers for the end of act 3 below.
Idk what happened. I’ve only ever helped her. We just came from the astral plane and are ready to fight the brain. She pledged her sword and I gave a speech saying everyone is the hero of Baldur’s Gate or some such, and then it cut to her telling me off and telling me if I die against the absolute it’s better than I deserve and she left. WTF? Does anyone know why that happened?
Edit: mystery solved. More spoilers below.
If you kill Minsc instead of saving him, and then don’t talk to Jahiera before the battle, she finds out about it after your speech, is hella pissed, tells you off, and leaves. She already pledged her harpers though, so you still get to use them.
Yeah it seems super buggy. I had her in my party the whole time, did her quest etc, but she didn’t offer any help. Didn’t think anything of it until I reloaded the save to see some more endings, and all of a sudden she’s like “have some harpers!”
Did you kill Minsk instead of saving him and then didn’t talk to Jaheira before the final battle? Because that will do it.
Yes. I didn’t even know I was supposed to save him. I made sure not to kill his little hamster though. Whoops! Mystery solved! I was kind of speed reading her statements in my last conversation with her. I guess I missed something. I was eager to tidy up loose ends and defeat the brain.
Next time just make sure you have non lethal attacks toggled on. Then when you smack him with your sword you can talk to him after.
I got a quest log message that Halsin had left, though he was still in the camp and was usable in the party. Everything worked as if nothing happened.
Could be a bug.
You can use Halsten in your party? He came to my camp, hung around being useless, and then disappeared. I was never able to invite him to join my party, and there was no conversation about him leaving, he was just gone one day.
Yes, you have to do some quests first. I think it was around mid or late Act 2 when he got usable as a member. I am not sure which quest, likely the questline regarding the sick man in the Last Light Inn / little boy and his ghost.
I didn’t even know that you could do a quest for him the first time 'round, because the trigger to start it is so easy to miss. I only found out because a friend told me.
There is so much in this game you’ll continue to find stuff even on a 5th or 10th playthrough. I’ve played through it about 10 times now and I still find stuff.