'Chock-full of awesome,' says Paolo Bacigalupi, 'the kind of airship-dueling, guns-blazing fantasy that makes me wish I could pop through to the next reality over!' - so join Everett and Sen on the airship Everness as they race through parallel worlds to save his dad! There is not just one you, there are many yous. We're part of a multiplicity of universes in parallel dimensions - and Everett Singh's dad has found a way in. 'Chock-full of awesome,' says Paolo Bacigalupi, 'the kind of airship-dueling, guns-blazing fantasy that makes me wish I could pop through to the next reality over!' But he's been kidnapped, and now it is as though Everett's dad never existed. Yet there is one clue for his son to follow, a mysterious app called the Infundibulum: a map not just to the Ten Known Worlds, but to the entire multiverse - and someone wants to get her hands on it . . . very badly. If Everett's going to keep it safe and rescue his dad, he's going to need friends: like Captain Anastasia Sixmith, her adopted daughter and the crew of the airship Everness. 'Romantic, action-packed, wildly imaginative and full of heart' Cory Doctorow 'Shining imagination, pulsing suspense and sparkling writing make this one stand out. As Sen would say, "fantabulosa bona"' Kirkus Starred Review