He smells terrible. He'll eat literally anything. And he's humanity's only hope....

When 12-year-old Georgie makes friends with an eccentric retired scientist, she becomes the test-subject for a thrilling new experiment: a virtual reality 3-D version of the future. At first, it's just a game. But when a deadly virus threatens to wipe out every pup on the planet, Georgie and her beloved (and very smelly) dog, Mr. Mash, along with best friend Ramzy, must embark on a desperate quest to save the dogs-- and also all of humanity. And they have to do it without actually leaving the room. This high-concept, astonishing new novel from the author of Time Traveling with a Hamster takes us on an epic adventure, and asks the question: is it really possible to alter the future?