In a future world in which habitable space has been exhausted, Humans have physically modified to survive in the skies, oceans and deserts. Living in the hidden City of Shifting Tides, 13-year-old Aluna heroically strives to save the ocean-dwelling Coral Kampii when their lives are threatened by destructive forces in the Above World.
Feisty Aluna and her techie pal Hoku have the Kampii’s “thick bones and tough skin, adaptable vision, [and] breathing necklaces.” Even though Aluna will soon trade her legs for a swimming tail, she doesn’t fit with the isolated Kampii and defies them by secretly training to be a hunter. When their breathing necklaces mysteriously fail, causing Kampii to die, Aluna opts to leave before receiving her tail and journeys with Hoku to the Above World to try to find some answers. Along the way, Aluna and Hoku encounter deadly Dragonfliers, aquatic Deepfell demons, winged female Aviars, half-horse Equians and brutal Upgraders. Fighting every step of her perilous quest, Aluna enlists help from creatures of the air, land and sea. A warrior heroine with a caring heart, stalwart friends, an edgy futurist subtext and the suggestion of a possible sequel make this a thrilling sci-fi adventure. Imaginative and riveting. (Science fiction. 10-14)