Nightsiders (Krinard)

He'd loved a vampire once, only to have her murdered by vengeful Freebloods. Now, to save his son, Garret Fox must look to another Freeblood for help. Garret knows the empathic vampire Artemis can't deny his request once she reluctantly drinks his human blood. But although their connection runs deep, their attraction hot, Garret can never forget what Artemis truly is.

Former serf Daniel had journeyed to Tanis in search of harmony between humans and vampires. Though the citadel's facade promised peace, it wasn't difficult to find the danger lurking in the shadows. Yet it was the Bloodlady known as Isis, an ancient, beautiful vampire, who proved the biggest threat to Daniel's heart.