The astounding new novel from the bestselling and Costa-shortlisted author of Time Travelling with a Hamster, this is a story for everyone of 10 and older who loves adventure, laughs and tears. “One of my favourite middle-grade writers” Kiran Millwood Hargrave, author of The Girl of Ink and StarsWhen 12-year-old Georgie makes friends with an eccentric retired scientist, she becomes the test-subject for a thrilling new experiment: a virtual reality, 3D version of the future.Then a deadly virus threatens to wipe out every dog in the country, and Georgie's beloved dog Mr Mash gets sick. Which is bad – but worse is still to come.As the world is thrown into chaos, Georgie embarks on a desperate quest: to save every dog on earth and all of humanity…… without actually leaving the room.An extraordinary quest with the biggest stakes of all, and a huge idea at its heart, this is time travel – but not as you know it.