Book One: Rae Wilder has problems. Supernatural creatures swarm earth, and humanity is on the brink of extinction. Stalked by a handsome fairy who claims she is like him, demonkind, she thinks maybe it was a mistake breaking the rules by going over the Wall into demon territory. Plunged into a world of dark magics, fierce creatures, and ritual sacrifice, she is charged with a guarding a magical amulet. The changes to her mind and body are startling, but rather than accept her purpose she struggles against who she is destined to be. Throw in a big lust for a vampire who can't keep his hands off her, and life starts to get complicated. Rae is forced to make the ultimate choice: to live and die human, or embrace her birth-right and wield magics that could turn her into something wicked, a force of nature nothing can control. (Previously titled Demon Girl).

Nightingale is human - or would be, had it not been for the manner of her creation. Genetically engineered and grown to adulthood in a lab, she was created, not born. Why? For the sole purpose of the entertainment of rich men as one of the many Inamoratas in the bordello business . Beautiful, elegant, a superb dancer and an even better singer, she is the perfect lover for any man. Perfect, that is, except for her personality - the one thing you can't engineer.