Heart Failure by Richard L. Mabry is a medical thriller set in a small town in Texas. Dr. Carrie Markham is finally getting over the death of her husband. Life is starting to get a little easier; until she and her new fiancé are involved in a drive by shooting. Adam confesses that he’s not who she thinks he is. And her world collapses again. Will Carrie stick with Adam through it all? Can they work things out before he is killed? This thriller uses a lot of medical terms, but they are explained as you go along. The plot thickens and by the end of the book you’re not sure who you can trust. Mr. Mabry does a skillful job in weaving together his writing ability and his knowledge as a doctor.