The hilarious crayons from the bestselling The Day the Crayons Quit are back and ready to celebrate Halloween! They have their costumes on and their bags ready for candy, but there is just one tiny problem: they are not quite sure what to say when they knock on their neighbors' doors. Join the colorful crew as Purple Crayon steps up to teach the rest of the box the magic words needed for a successful night of trick-or-treating. (Hint: It is definitely not "Boo!") This charming, treat-sized adventure is packed with the signature humor and vibrant illustrations you love. It is the perfect funny holiday story to get you in the spooky spirit while learning a little bit about Halloween etiquette along the way. Grab your favorite color and get ready for a hilarious night of candy-filled fun!