Some oaths are meant to be broken. Some love is worth the fall. Cyrus was the perfect guardian—until he fell for Gemma, the woman he was sworn to protect. His bonded oath lies in ruins, his honor shattered, and the love of his immortal life belongs to another man, Laurel. What Cyrus hadn't expected was to love them both deeply. Gemma has her mate, her child, her perfect fae life. Cyrus has nothing but the ashes of his unicorn existence. Every sunrise brings him fresh torture. Every sunset is another reminder of what he can never have. And the bond between them—the one he's tried so hard to sever—still pulses with every beat of his broken heart. When an old enemy threatens the balance of the entire realm, Cyrus will be forced to choose between honoring the sacred unicorn laws or risking everything to stand by her side when darkness comes calling. A unicorn guardian. A forbidden love. A destiny that could save or damn them all.