Ember discovers she is not only fae, but is one of the most feared type in existence—a Dae—considered an abomination among their kind. Her race is hunted down and killed because of their power. After her magic causes an electrical storm which destroys Seattle, Ember is on the run, pursued by the both the light and dark fae.

Three years have passed in Earth’s realm when Ember and her friends finally return from the Otherworld. Eli feels her the moment she steps back, and the beast is far from delighted. Believing for the last three years she was dead, he has become violent and cruel in her absence.

Zoey Daniels has been tossed from foster home to foster home, where she grows up fast and tough. When she is placed in her "last chance" home, she finds a reason to stay and turn her life around: her foster sister, Lexie, who is paralyzed and confined to a wheelchair. After high school, Zoey is hired by a special government agency, the Department of Molecular Genetics (DMG), where she meets the other reason to remain: Daniel, her coworker. The man she loves. But there is something unique about Zoey.

Nineteen-year-old human, Brexley, has grown up in privilege, but not without heartbreak. After being orphaned, she is taken in by General Markos, living in a walled city rife with power grabs and ruthless political games. Then, one night, the course of her life changes, and Brexley is thrown into the most feared prison in the east. Halalhaz, the House of Death - where you go in but don’t come out. She must learn to live with the worst of fae and human criminals.

When Eli and Ember are taken by Aneira, she is forced to make a deal to save the man she loves. A curse is placed on Ember that if she uses the sword against the Seelie Queen, Eli dies. A price she might not be willing to make. The fight for Earth is on, and old enemies must work together to stop Aneira from bringing down the wall between Earth and the Otherworld, making humans servants to the fae and killing all those who oppose her reign.