The Case of the Locked Time Capsule

Thomas K. Adamson; Heather Adamson; Charlie Alder (Illustrator)

Workers discover a time capsule at Lincoln Elementary, but it's locked! What could be inside? Whoever made it left a trail of geometry clues based on shapes. Be a math detective along with the kids at Lincoln Elementary and help solve this pick-your-own-path mystery. Choose the right answer, and advance...