'Could keep readers guessing all holiday [ . . .] Rip-roaring, brain-teasing stuff' Daily Mail Solve the puzzle. Save the world. Simple, right? Step into the shoes of Arlo Banks, and return to a world of secrets and spies. This time, he's on the trail of a shadowy group determined to stop the young sleuth in his tracks. From the bright lights of Hollywood to the snowy alps, from prison breaks to car chases, Arlo must use all his skill and cunning to solve murders, catch killers and - just maybe - stop the end of the world. You choose what path you take, what puzzles you solve, and what answers you choose in this interactive high-stakes mystery.