Or he gave Wren a crayon and told her to do his homework. I’d say he payed Zoe to do it, but his teachers would expect too much from him in the future if he asked her to do it. If Wren did it, Hammie would just hand it in to the teacher with scribbles all over it.
When she wakes up, she’ll be a perfect little angel again. She’ll just wonder why she’s in a box…