In a last-ditch attempt to escape Mayor Highshine and get off-world, Scrap,Paige and Gnat make a perilous journey in search ofthe last rocket ship on Somewhere 513. But as they struggle to liberate the ship, the mayor's forces close in and with time running out, Paige faces an agonising decision to keep her sister safe.

This is the story of how everything changed. It's not my story, not really. This is the story of my sister and her best friend Scrap, and of what they gave up for me ... to save me. After escaping the clutches of Mayor Highshine for a second time, Scrap, Paige and Gnat make the perilous journey to the ocean jungles in search of the last rocket ship on Somewhere 513. But as they struggle to liberate the ship from a family of vicious frogbears, disaster strikes and it suffers a near-fatal crash. As Scrap works to repair the ship, things go from bad to worse when he makes a discovery that means leaving is impossible. But with the forces of Mayor Highshine closing in, staying isn't an option either. As old rivalries return and new alliances form in the midst of a final stand-off, Paige faces an agonising decision if she is to keep her promise to her mum to keep Gnat safe... The final instalment in an original and entertaining new trilogy for middle-grade readers from the award-winning author of STITCH HEAD. For fans of Maz Evans and Thomas Taylor.