Empire of the Vampire (Empire of the Vampire, #1)

by Jay Kristoff

And in sight of God and his Seven Martyrs, I do here vow; Let the dark know my name and despair. So long as it burns, I am the flame. So long as it bleeds, I am the blade. So long as it sins, I am the saint. And I am silver. —THE VOW OF SAN MICHON