Eaters of the Light — J. Edward Neill

Having waged war against the vampiric Strigoi for nearly a thousand years, the immortal Callista Lightbringer searches for a way to end the bitter conflict. To find it, she must journey to humanity's farthest reach. And she must bring the battle to the Strigoi home galaxy, known only as Hades. In Hades, no light lives. ...except one. The thrilling conclusion to the Eaters of the Light series begins now. Eaters of the Light is the sequel to sci-fi hits Darkness Between the Stars & Shadow of Forever.