From authors Stephanie Calmenson and Magic School Bus author Joanna Cole comes the fourth adventure of Allie and Amy, two friends who help a new friend in this silly, fun-to-read Aladdin QUIX chapter book that's perfect for emerging readers! Best, best friends Allie and Amy do absolutely everything together. It's almost Halloween and this dynamic duo are sure they'll win first prize in the town's costume contest. On the way, they see a little friend in need. Can they stop to help and still make it to the party on time?