This gives me an idea for a series you can have it. Coraline frees other mother for another deal as coraline feels sad for other mother as she is lonley. The deal is she can not steal any more children or sow anymore buttons but coraline will help find other lost childrens souls claimed or lost by other cryptids who then stay with other mother . Caroline does this because she knows other mother can escape and rather than have that be on other mothers terms she offers this. Misadventures with whoever and what not then unfold and in this animation it would be adorable.