Two Nights In Lisbon by Chris Pavone

 Ariel Pryce hasn't been married long, so when her husband suggests that she accompany him on a business trip to Lisbon, she agrees.  It is to be somewhat of a honeymoon and the first night lives up to that promise.  A great meal, a lovely hotel and a night of passion.  But when Ariel wakes up the next morning, her husband isn't in the room.  At first she thinks he must be walking or eating breakfast but when he doesn't return and she notices belongings he should have with him still in the room, she starts to worry.

She goes to the police but they think she is an overanxious wife.  She tries the American Embassy but the same thing happens.  Unsure where to turn, she is given a cell phone on the street by a stranger and then it rings.  John has been kidnapped and the ransom is three million in cash within two days.

Ariel doesn't know what to do.  She and John are middle class and don't have anything like that kind of money.  She calls her first husband who is wealthy but he isn't willing to help.  Finally, she is forced to make a call she hoped she would never have to make to the man with whom she shares a dark secret but who is the only person she knows who has that kind of money.

Chris Pavone is a thriller writer whose work has been awarded most of the awards in this genre.  In this clever mystery, each chapter starts with the time and the day which increases the tension as Ariel's deadline to pay the ransom inches closer and closer.  There are many twists and turns which I didn't see coming and a very satisfactory ending.  This book is recommended for mystery and thriller fans.