39 Clues, Infinity Ring, and Spirit Animals Powerpack

This promotional set bundles the opening books of three Scholastic multi-author adventure series: The 39 Clues (created by Rick Riordan, who wrote the first installment, The Maze of Bones), Infinity Ring, and Spirit Animals. Each series combines a novel with an online game and collectible cards, and the bundle is designed as a sampler that introduces readers to all three at once. Rick Riordan's connection is limited to the 39 Clues component; the Infinity Ring and Spirit Animals titles are by other authors. The pack is a marketing collection rather than a single authored work, and is included here for catalog completeness.