When Cade Brock finds Sienna he thinks that she is her twin. He saves her from some people intent on kidnapping or killing her, maybe the people he suspects of being her accomplices in terrorism. He needs to find a treasure on a shipwreck and he's convinced Sienna knows how to find it. She has no idea how to deal with him but can she deal with his secret, that thing that makes him part of Pax - the Paranormal Allied eXperts. Can he cope with his attraction to her.

Largely readable but it felt somewhat forced occasionally. Sometimes things happened to characters that seemed to be more to tick off the boxes from the authors list than actually be logical progress for the characters. ( )