Nightwing by Lynn Michaels
A vampire, his Shade and an ancient evil...
Willow Evans doesn't believe in vampires until she discovers that Jonathan Raven doesn't cast a reflection in a mirror. She doesn't believe in ghosts, either, until she traps Johnny, Raven's Shade, in a mirror.
Neither Johnny nor Raven can really exist, yet they do -- and so does Nekhat, an Egyptian vampire unearthed in the Valley of the Kings in 1878. Nekhat wants Raven and his moonstone ring.
Johnny loves Willie without condition. Raven needs her to regain his mortality. Which one will she choose?