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.

For a thousand years the ash fell and no flowers bloomed. For a thousand years the Skaa slaved in misery and lived in fear. For a thousand years the Lord Ruler, the "Sliver of Infinity," reigned with absolute power and ultimate terror, divinely invincible. Then, when hope was so long lost that not even its memory remained, a terribly scarred, heart-broken half-Skaa rediscovered it in the depths of the Lord Ruler's most hellish prison.

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.

"No killing Goblins." So reads the sign outside of the Wandering Inn, a small building run by a young woman named Erin Solstice. She serves pasta with sausage, blue fruit juice, and dead acid flies on request. And she comes from another world. Ours. It’s a bad day when Erin finds herself transported to a fantastical world and nearly gets eaten by a dragon. She doesn’t belong in a place where monster attacks are a fact of life, and where humans are one species among many. But she must adapt to her new life. Or die.