After the dust settles, the City of living bones begins to die, and more trouble brews beneath the clouds in this stirring companion to Fran Wilde's Updraft.

When Kirit Densira left her home tower for the skies, she gave up many things: her beloved family, her known way of life, her dreams of flying as a trader for her tower, her dreams. Kirit set her City upside down, and fomented a massive rebellion at the Spire, to the good of the towers—but months later, everything has fallen to pieces.

With the Towers in disarray, without a governing body or any defense against the dangers lurking in the clouds, daily life is full of terror and strife. Naton, Kirit's wing-brother, sets out to be a hero in his own way—sitting on the new Council to cast votes protecting Tower-born, and exploring lower tiers to find more materials to repair the struggling City.

But what he finds down-tier is more secrets—and now Nat will have to decide who to...

A winged society faces the threat of ultimate extinction in the thrilling finale to Fran Wilde's Bone Universe fantasy series

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"One of the most fun, imaginative fantasy novels...I'm already anxiously awaiting her next book." —Book Riot on Updraft

"That rare bird, the follow-up to a highly praised first novel that doesn't just equal its predecessor's accomplishments, but exceeds them." —Locus on Cloudbound

A City of living bone towers crumbles to the ground and danger abounds. Kirit Densira has lost everything she loved the most—her mother, her home, and the skies above. Nat Brokenwings—once Kirit's brother long before the rebellion tore them apart—is still...

Welcome to a world of wind and bone, songs and silence, betrayal and courage.

Kirit Densira cannot wait to pass her wingtest and begin flying as a trader by her mother's side, being in service to her beloved home tower and exploring the skies beyond. When Kirit inadvertently breaks Tower Law, the city's secretive governing body, the Singers, demand that she become one of them instead. In an attempt to save her family from greater censure, Kirit must give up her dreams to throw herself into the dangerous training at the Spire, the tallest, most forbidding tower, deep at the heart of the City.

As she grows in knowledge and power, she starts to uncover the depths of Spire secrets. Kirit begins to doubt her world and its unassailable Laws, setting in motion a chain of events that will lead to a haunting choice, and may well change the city forever-if it isn't destroyed outright.