Eugene law student and intern at a local law firm, Haddie discovers more about herself and her dad than she was ready to delve into. Shocked by gruesome deaths that defy the laws of nature, she searches for rational answers to otherworldly incinerations. To learn the truth, she investigates the two bizarre deaths of a local businessman and his wife. Haddie races against time, obsessed with saving the firm's client, the businessman's mistress, who the police accuse of impossible murders that the young woman couldn't have committed.

Eugene law student and intern at a local law firm, Haddie is adjusting to her and her dad’s unnatural abilities. He’s lived with it for centuries, but she just found out this year. Now, she’s dealing with a new addition to their family and a friend who has disappeared. The trail leads to a disquieting series of bizarre raves where people go missing, lose their minds, or die. Someone, or something, disturbing is hiding amid the colorful lights and music. Haddie races against time before her friend becomes one of the casualties.

Eugene law student and intern at a local law firm, Haddie unites with an unusual ally to delve into the disquieting organization known as the Unceasing. Her dad, Thomas, has his own troubles with an anonymous admirer who boldly attempts to recruit him to a dubious cause; worse, his fan has been stalking him since his last alias as a soldier in Vietnam. Following a lead in Boise, Idaho, Haddie and Thomas race to build a crew to investigate the Unceasing, never expecting to spark a backlash so quickly. However, if Haddie doesn’t take a risk and act fast, her team might be lost.

Haddie, her dad, and her friends are all at risk in a twisting turn of events. The Unceasing are back and stronger than ever. Her coworker has already been coerced; will one of her friends be next? In a race against time, Haddie and her team rally to find the source of this strange power and stop it, but they might not be enough. Haddie is faced with heart-wrenching decisions, and the choices she dares to make might cost her everything as she stands up against someone who can turn her own team against her. Will she be able to turn things around the second time? Who will she lose?

Thomas confronts the leader of the Unceasing in their hidden Albuquerque base and Haddie follows close behind. Detective Cooper, the coerced FBI, and the Unceasing’s thugs hunt her and her friends until no one is safe. Haddie won’t be able to return to Eugene, not until her or her dad stop the Unceasing. What waits under the hills of Coyote Canyon will shock them all and threatens to be more than Haddie can handle.

Haddie’s life crumbles around her as the Unceasing’s plans to destroy society unfold. In this epic ending, people she loves die, alliances will divide, and the world rests on the brink of disaster. A new AngelSong enters the conflict.