This is book number 12 in the Dark-Hunter Novels series.
While the world carries on unawares, Stryker, who leads an army of demons and vampires, is plotting an all out onslaught against his enemies—which, unfortunately for us, includes the entire human race. To avenge his sister, Stryker prepares to annihilate the Dark-Hunters. But things go awry when his oldest enemy returns. Enter his ex-wife. Zephyra. Just when he thought nothing could stop him, he's now embroiled in a centuries old war with a shrew who gives new meaning to pain.
“An engaging read.” —Entertainment Weekly on Devil May Cry
“Kenyon's writing is brisk, ironic, sexy, and relentlessly imaginative. These are not your mother's vampire novels.” —The Boston Globe on Dark Side of the Moon