Pure vampire
"Because once, a very long time ago, one of my sons made a great lapse in judgment, and the immortals have been paying for it ever since."
Sariel folded his hands in front of his large body, his wings going once again transparent. "Because of his sins, a darkness — a sickness — descended upon both races. I mean to rectify that in the only way I know how."
I was afraid to ask.
"Well?" he smirked. "Aren't you the least bit curious?"
"No."
"Lie." His eyes flashed white. "Blood will be spilled. They will come for you."
"And if they don't?" I whispered.