"Angel's Blood" is a fantasy novel by Nalini Singh, part of the Guild Hunter series. The story follows Elena Deveraux, a skilled vampire hunter, who is hired by the powerful archangel Raphael to track down a rogue angel. Set in a world where angels and vampires coexist, the novel explores themes of power, loyalty, and desire. As Elena and Raphael work together, they uncover dark secrets and face dangerous adversaries. Their relationship evolves amidst the challenges they encounter, blending elements of romance and suspense. The book combines rich world-building with compelling characters, making it a captivating read for fans of urban fantasy.