Here’s an update: the actual Sarevok-PC dialogue about Tamoko and Yoshimo is now about as done as it will be without constructive criticism. If you want to read it beforehand (and hopefully give feedback!

), it's
here, in case someone doesn’t want to see the actual text until in the game.
To fit this in seamlessly, a few other things need to be added. What do you say to this plan:
When you bring Yoshimo’s heart to Ilmater’s shrine, you find that Yoshimo has left some personal effects there, for safekeeping, or for fear of the consequences, should they be found on him. Among other things, you’ll find his journal (unless that’s too corny), where Yoshimo would mention his connection to Tamoko, his quest to find her, and his agreement to undergo a geas for Irenicus, in order to find out what happened to Tamoko -- and to get revenge?
--> I’m a bit unclear on what’s the general stand (if there’s any such thing) on this: was it really Yoshimo’s goal to avenge Tamoko on Charname? Or was he just out to find out what had happened to her, before Irenicus and the geas messed things up?
We might end up adding a bit of dialogue for Yoshimo as well? He might ask, somehow indirectly – make that *very* indirectly -- about Tamoko’s death. If indeed Charname gets his journal in the end, the entries could be affected by Charname’s responses. Whether or not s/he killed Tamoko, and whether or not Yoshimo feels regret at his choices, whether or not he still wants vengeance; if he’s having second thoughts, either because he likes Charname and company, or because he knows confronting Charname will be the death of him, as will failing to kill him/her, or trying to fight the Geas. Etc.
@a quest in their honour: I’ve been racking my brain, but I haven’t been able to think of any kind of proper quest, really, that would make sense in the framework of ToB. Arrange for Tamoko’s burial, as is mentioned in Sarevok’s epilogue? You’d have to go back to Baldur’s Gate, and that’s out. (Gaider’s comment might refer to a phase of development when ToB wasn’t as linear, and as tied to a few select locales, as it became in the end, mightn’t it?) If anyone comes up with an idea, I’m all ears.
On the other hand, she came to this part of the world because of Sarevok, apparently. I suppose you could say that Sarevok’s redemption is something of a quest in her honour. (You may slap me with the lame trout anytime now.)