Theirs is a world of opposites. The privileged live in sky manors held aloft by a secretive magic known only as the Mysteries. Below, the earthbound poor are forced into factory work to maintain the engine of commerce. Only the wealthy can afford to learn the Mysteries, and they use their knowledge to further lock their hold on society. Cettie Pratt is a waif doomed to the world below, until an admiral attempts to adopt her. But in her new home in the clouds, not everyone treats her as one of the family.

Survivor of a combat school, the orphaned Bingmei belongs to a band of mercenaries employed by a local ruler. Now the nobleman, and collector of rare artifacts, has entrusted Bingmei and the skilled team with a treacherous assignment: brave the wilderness’s dangers to retrieve the treasures of a lost palace buried in a glacier valley. But upsetting its tombs has a price.

In a world full of magic and mystery, eighteen-year-old Maia is the exiled princess of Comoros and rightful heir to the throne. Forced to live as a servant in her enemy’s home, Maia flees her captors and begins a perilous quest to save her people. To survive, she must use magic she has learned in secret—despite the fact that women are forbidden to control it.

In the ancient and mystical land of Muirwood, Lia has known only a life of servitude. Labeled a “wretched”, an outcast unwanted and unworthy of respect, Lia is forbidden to realize her dream to read or write. All but doomed, her days are spent toiling away as a kitchen slave under the charge of the Aldermaston, the Abbey’s watchful overseer. But when an injured squire named Colvin is abandoned at the kitchen’s doorstep, an opportunity arises.

Before she befriended a frightened young boy in the palace of Kingfountain, Ankarette Tryneowy grew up during the shattering civil war that raged between members of the Argentine family. This is the story of how the only daughter of a lawyer and a midwife became the famed Queen's Poisoner.