Guild hunter

When her lover, the archangel Raphael, receives an invitation to a ball from the archangel Lijuan, Elena, who is still recovering from her transformation into an angel, must accompany him to Beijing, where a nightmare awaits them.

Nalini Singh, the New York Times bestselling “alpha author of paranormal romance” (Booklist) returns to an immortal world of violent passion and lethal power…on the brink of a deadly archangelic war.
Angels are falling from the sky in New York, struck down by a vicious, unknown force.
Vampires are dying impossibly of disease.
Guild hunter Elena Deveraux and the Archangel Raphael must discover the source of...

"Once a broken girl known as Sorrow, Holly Chang now prowls the shadowy gray underground of the city for the angels. But it's not her winged allies who make her a wanted woman--it's the unknown power coursing through her veins. Brutalized by an insane archangel, she was left with the bloodlust of a vampire, the ability to mesmerize her prey, and a poisonous bite" --

"The world is in chaos as the power surge of the Cascade rises to a devastating crescendo. In furiously resisting its attempts to turn Elena into a vessel for Raphael's power, Elena and her archangel are irrevocably changed, far beyond the prophecy of a cursed Ancient. At the same time, violent and eerie events around the world threaten to wipe out entire populations. And in the Archangel Lijuan's former territory, an unnatural fog weaves through...