Noticed this playing a solo run (and killing all the player character's I'm not using). If you kill Eder before talking to the dead animancer in the tree in Gilded Vale, his line "Seventeen-and-a-half" is still played when you're finished speaking with her, even if he's not there.

 

Not a big deal, but wanted to report it just the same.

Maybe he is close enough that when you reach out to the Dwarf's soul you pick up his soul and he answers from the spirit world.  It would be a riot if he said 19.