Kaitlyn Savoy might’ve been raised human, but she’s fully embraced her shifter side in her role as Guardian. Protecting her species calls to her blood, but unfortunately, so does her new partner. She pretends indifference to his cutting remarks about her heritage and the inconvenient blackouts she experiences after each shift. Chayton Eagle’s honorable bloodlines include an ancient father and full-blooded Sioux mother. When he joins the West Creek Guardians and meets Kaitlyn, he can’t believe fate chose her to be his mate. But it's too late. He already swore himself to another female. When the two Guardians have to partner for a mission, it brings them too close to resist their attraction—until Chayton discovers the promise he made in the past may kill his future.