Loosely based on "The Night Before Christmas, " this rhyming story tells of a group of animals, monsters, and witches who prepare such a frightening Halloween party that their expected trick-or-treaters all run away.

"After the tragic death of their father, Emily and Navin move with their mother to the home of her deceased great-grandfather, but the strange house proves to be dangerous. Before long, a sinister creature lures the kids' mom through a door in the basement. Em and Navin, desperate not to lose her, follow her into an underground world inhabited by demons, robots, and talking animals. Eventually, they enlist the help of a small mechanical rabbit named...