Edge of Twilight by Maggie Shayne

His name is Edge, and he is the last of a band of Immortals who have been hunted down and murdered by Frank Stiles -- an enemy determined to unlock their deepest secrets.Vengeance has become Edge's obsession. To claim it, he must find the young woman whispered to be the Golden Child.

A legend among the undead, Amber Lily is the only half human, half vampire ever born, and is possessed of powers even she is unaware of. Amber alone understands the dangerous threat of Frank Stiles. Only she may hold the key to his vulnerability...and his doom.

Amber shares Edge's need to get to Stiles. But she needs to keep him alive for reasons of her own. Edge is exciting and dangerous, and despite her own instinct for self-preservation, Amber is drawn into his hunt. In doing so, she will cast her fate to the wings of the night, to a passion that may be her destiny, to an evil she may not be able to defeat -- to the edge of twilight where only the Immortals belong.

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