Devirian Revlis: Book Three in the Trials by Blood Series

As Devi reaches maturity he must rely on his mother's teachings to make him an honourable demon. He is caught off guard when the love of his life returns to claim him. Old memories surface and threaten to break him. Life isn't easy for a demon who loves humanity. And a nightmare becomes reality when an old oath binds him to a monster known as the Keeper of Bones. Once again the team is thrown into chaos as they try to fight for not just the safety of the human realms, but the safety of all life as it is.