Blood Sacrifice: The Avebury Legacy (Vampires: The New Age #1‪)‬

This novel was previous titled Advent.

Nate was hunting a vampire when he first bumped into Lexie, a witch infected by a vampire bite. When Lexie used blood magic to save him from certain death, she passed on the infection to Nate. For a time Lexie's magic has been able to keep them both partially human as they continue to protect ignorant humanity from the vampire threat, but that magic is now starting to fail.

There are legends that the ancient Avebury ritual designed to destroy Morigan of Leyland, the most powerful vampire ever known, may hold the key to the cure they need, but to perform it Nate and Lexie require the four relics from the original ritual. Enlisting the help of veteran hunter, Brian Hawker, who has his own reasons for finding the relics, they must search across continents before it is too late.

In their way are vampire nuns, a crystal cave, shape changers, a labyrinthine catacomb, mummified monks and even librarians. However, their greatest foe is Dahlia, undead sister of Morigan, who will stop at nothing to retrieve the relics for herself and to claim Morigan's power. If Dahlia reaches any of the relics before them, Nate and Lexie face a fate worse than death, losing their humanity to the blood lust.

Exciting new adult, paranormal fantasy. "Tomb Raider meets vampires" with fast paced action and engaging characters.