4th book in this series about a female vigilante killer & the FBI agent who tracks her. This book goes between present day w/Roarke on leave & looking for Cara & 16 years-ago into Cara's past & a case involving the rape & murder of a teenage girl. I dawdled over the arc until the action kicked in & I remembered just how much I like this series & couldn't put it down. Dark & violent, but Cara & Roarke are compelling characters that fascinate me.😱