Boo It's finally Halloween. Baby Bear is trick-or-treating with Mama Bear and Papa Bear. As the bears come up to the very scary house, they notice that the door is open. Maybe they should go inside. But is that a "Tee-hee-hee" coming from behind the bush? Could the three bears be in for a Halloween trick? Goldilocks gets a visit from the three bears in this spooky companion book to "The Three Bears" Christmas.