Some bonds are written in the stars. Others are forged in the forbidden.

When Crown Princess Gemma ventures to the edge of the Forbidden Forest, she falls straight into enemy hands.

Captivated by Prince Laurel's warm aura and gentle nature, Gemma discovers that nothing about the enemy kingdom matches what she's been taught. The mysterious connection that sparks between them defies explanation, and the secrets of her mother's past slowly unravel with each passing day.

As her protective unicorn, Cyrus, grows uneasy and her family awaits her return, Gemma finds herself torn between duty and a desire she never expected. Ancient magic is failing at the borders, and vampires threaten both kingdoms. When centuries of history crash against newfound passion, Gemma must decide: Is the heat between them worth risking two kingdoms?

Fate doesn't care about battle lines.

Crown of Broken Promises is A Night and Rain Series prequel. While not required, this book may be best experienced by reading Crown of Night and Rain first.