The Serpent Sea

Moon, once a solitary wanderer, has become consort to Jade, sister queen of the Indigo Cloud court. Together, they travel with their people on a pair of flying ships in hopes of finding a new home for their colony. Moon finally feels like he's found a tribe where he belongs. But when the travelers reach the ancestral home of Indigo Cloud, shrouded within the trunk of a mountain-sized tree, they discover a blight infecting its core.

Martha Wells is the author of more than a dozen science fiction and fantasy novels, including the Ile-Rien series (The Death of the Necromancer), the Murderbot Diaries series (All Systems Red), and the Books of the Raksura (The Cloud Roads). Her work has won the Nebula, Hugo, and Locus Awards, been nominated for the Nebula and Compton Crook awards, and been published in eight languages. Wells lives in College Station, Texas.