Riley and twin brother Rhoan, from the sizzling Full Moon Rising, are back, and Arthur heightens the sexy thrills and supernatural chills by chronicling their deadly adventures in a trilogy of back-to-back releases. Get ready for one heck of a ride!

How much behavior is encoded in our DNA and how much is free will? For Riley Jensen, a werewolf who is also part vampire, this question is becoming all too important.

So far, Riley has avoided becoming a lethal Directorate "Guardian" like her brother. But after escaping from an illegal genetic engineering lab, where she was kidnapped and sexually abused, Riley suspects that she is being forced into the killing fields.

Her love life is also a mess. Her former vampire lover Quinn is too territorial to handle her werewolf need for moon-driven sex with whomever is available. With each new assassination attempt, it's becoming clear that betrayal may be afoot. (DELL, Feb., 400 pp., $6.99)

Reviewed by: 
Jill M. Smith