Bandits by Elmore Leonard
An ex con, an ex nun and an ex cop form an unlikely dreamteam of bandits in this enthralling tale from the grandmaster of American crime fiction.
Reformed jewel thief Jack Delaney was going straight - until he met sexy ex nun Lucy Nichols. Jack's in the funeral business and when he's sent to collect a body from a leper hospital, he finds it in Sister Lucy's care - and very much alive.
Lucy's on a goodwill mission, hoping to smuggle the 'deceased' away from her dangerous ex, a Nicaraguan colonel with guns and goons aplenty. And it just so happens the colonel's also got several million dollars that could aid Lucy's quest to help mankind. With a crazy plan in hand and ex cop Roy Hicks on board, they plot to rob the colonel's coffers, and they're sure to make out like bandits - if they live that long...