Correct me if I'm wrong, I kinda remember before Imu possesed Gunko he always nearing the children, which kinda make sense if u wanted to make ur MMA stronger u gotta be nearing the "source" the type of if its near its stronger but if its far its weaker type shi.
And yea, Imunko wanted to see how Jarul gon die, and Sommers lazy enough to do anything so his location should be nearing the Library.
Plus we still had some players that are free, Bonney even tho i didn't want her to get harmed she still possess one of powerful DF ability, WRANKY the GOAT, WROOK, and god how knows what Lillith gon do with Domi or even Nightmares.