Wizard detective Anna Kadabra needs help. Jewels have disappeared within the mind-boggling wings of the Mathmagical Museum. While attempting to solve the mystery and locate the jewels, she encounters an assortment of math problems, and a cunning dragon! She'll need the help of readers with an aptitude for math to aid this magical expedition. Young mathematicians will love wielding their math skills in this unique world of fantasy. Bright illustrations...