Prince of Dreams by Susan Krinard

San Francisco psychologist Diana Ransom can’t take her eyes off the gorgeous, green-eyed stranger. But when she finally approaches him across the smoke-filled room, her reasons have little to do with the treacherous feelings he inspires. Diana suspects that this brooding, enigmatic man is responsible for the disappearance of her fragile young cousin. Desperate to find her and determined to plumb the mystery behind Nicholas Gale’s hypnotic charm, Diana will follow him into the velvety darkness—and awake to a haunting passion. For Nicholas is no mere human but a vampire with the power to steal into a woman’s dreams and fill her nights with untold rapture. And soon, blinded by an ecstasy sweeter than any she has ever known, Diana will find herself risking her eternal soul for a love that promises to be forever.