On the night before Halloween, a new babysitter might be more than she appears. If she wears a black sombrero and cackles like a crow, she might just be a bruja! One little girl is determined not to fall victim to an evil witch or her cats. She knows bath time is really the bruja’s way of putting her in a boiling cauldron, and the only way to keep her at bay is with a magic potion—or is it?