Make your child's birthday super fun with our uniquely creative birthday box from The Book Playbox. This box takes children on a mysterious adventure with Harold a fox who is on the hunt to find out who has stolen the missing birthday cake. Each box includes the quality hardcover picture book The Mystery of Missing Cake Box written and illustrated by Claudia Boldt. The activities include a 'Missing Cake' Play Kit and a create your own collagraph cake art works. Each box has enough materials for two children to create together. As a special birthday treat for your littlest love, each box will come with a special mystery gift.