EDIT: Just beat it. Absolutely fantastic!! Really can't wait to see what you two do with this in the future. :)
ORIGINAL:
((Spoiler ahead))
This was really fun and SUPER spooky! But I got hung up after the point where the books change to The Ugly Duckling and the bathroom door is locked. Couldn't for the life of me figure out what to do next. :( Will try again later!