The first book in the thrilling time travel adventure trilogy from New York Times bestselling Spy School author Stuart Gibbs—now with a brand-new look!Before they were legends, they were friends. All for one and one for all!On a family trip to Paris, Greg Rich's parents disappear. They're not just missing from the city—they're missing from the century. So, Greg does what any other fourteen-year-ol... goodreads.com