I have read several Shannon Stacey books and the Devlin Group series is by far my favorites!  This book is the 2nd of the 3 book series (in order:  72 hours, On the Edge, No Surrender).  I never read books twice, but I will definitely be revisiting this series and I saw on the authors website that a 4th one is in the works!  I can't say enough about this series and can definitely not pick a favorite!