Ada is a lemur with a lightning-fast mind. Einstein is a laid-back llama with a head for big numbers. Along with a fact-filled parrot called Archimedes, these animal friends have a passion for all things maths.Help this terrific trio complete a range of exciting maths challenges as they go on an epic adventure in search of the legendary Golden Shell. Along the way, there'll be co-ordinate games, mathematical mazes and number codes to crack, as well as fun facts and top tips to discover.All the puzzles will take place in adventurous real-world settings - from ancient ruins to desert dunes and bustling marketplaces. Fun and engaging animal characters make the activities feel relatable to young readers and reveal the wonders of everyday mathematics.