Guardian: They chose to protect her. But forgot to guard their hearts. (A Halflings Novel)Vigilance. The mission to safeguard Nikki Youngblood depends on the fragile alliance of two half angel, half human guardians, both struggling with intense feelings for the girl who has been assigned to their care. Mace, steadfast and deeply in love, wants to protect Nikki at all costs, while Ravens loyalty to Nikki finds him advocating for her independence and battling his own darker inclinations. At the same time, Nikki finds it harder and harder to