"Intense and satisfying. I couldn't put this book down." Hugh Howey, bestselling author of WoolThe Builders came to Earth and constructed an elevator from Darwin, Australia, into Space. No one knows why, or if they will return.Years later, a virus ravaged the planet. The rare immunes survived, others became something less than human. How the elevator suppresses the disease, and why, remains unknown. But scientist Tania Sharma has a terrifying theory ...As Darwin collapses under the onslaught of refugees, reluctant captain Skyler Luiken and his scavenger crew scour the wasteland outside the elevator's protective aura for essential resources.But when the alien technology fails, will humanity survive?“Hough’s first novel combines the rapid-fire action and memorable characters of Joss whedon’s Firefly with the accessibility and scientific acumen of James S.A Corey’s “Expanse” series.” Library Journal, starred review“Imaginative plotting and realistic dialogue ... the brisk pacing and cliffhanger ending will keep readers enthralled and eagerly awaiting the next instalment.” Publishers Weekly