New York : Dell, 2010, c2006.
Dell mass market ed.
372 p. ; 17 cm.
[Riley Jenson guardian novel]
Arthur, Keri. Riley Jenson guardian.
Originally published: New York : Bantam Books, 2006.
Riley Jenson, a rare hybrid of vampire and werewolf, and her twin brother, Rhoan, work with the Melbourne Directorate of Other Races to protect humans from supernatural races, but when Rhoan disappears while on a mission, Riley learns she cannot depend on her employer to find her brother and sets out into the night to save him.