If three dinosaurs roar when you open your door, what do you say?

Boo of course In this charmingly spooky story by Susan Hood, little trick-or-treaters learn just what to say in every Halloween situation. From rattling bones to ghostly footsteps, Susan captures all the best scares of the season--and teaches just the right way to dispel fears in favor of fun. Jed Henry's lustrous watercolors add the perfect crisp chill to this fall-weather story.

For if a skeleton groans as she rattles her bones, what do you say?