Rhyne Castille has been viewing the world in black and white since he was turned. He’s gone decades seeing the world only in shades of gray, when suddenly there’s a change. The grass is green, the leaves are turning colors, and he can see it all…but how? It has to be the blood he’s been imbibing, and he’s determined to find out who it belongs to.

Grace Lockhart prides herself in donating blood as often as possible, seeing as she has one of the rarest blood types. Little does she know just what her blood can do for certain types of people, and what that could cost her.

When one of Rhyne’s nestmates gets a taste of the AB negative blood and realizes the benefits, Rhyne knows the man will stop at nothing until he captures the source to keep for himself. Rhyne has no choice but to protect her at all costs, even if it means turning on one of his own.

As good as Grace’s blood tastes, she’s given him more than just his color sight back. She’s made him feel love again. And that alone was worth more than life itself.