Eternal Betrayal — Kathryn Dona Lynn Jacks

Laura Irvine knows vampires exist, and the knowledge haunts her every day. Nightmares plague her in her sleep; paranoia claims her waking hours. And though her fear for vampires is great, her love for Derrick Chavez is greater. But clinging to his journal turns out to be her downfall when the creatures find it in her home. In the darkness she is swept away, and in the darkness she will remain -- locked in the vampire castle, deep in the underground. When she is finally reunited with Derrick Chavez, she's mortified to find he has no memory of the last three years of his life. She knows now that her only chance for survival is to earn back his trust and escape her new prison with her own blood still in her veins.