The Mysterious Benedict Society (NYT bestselling series) 1-3 plus one, by Trenton Lee Stewart: The Mysterious Benedict Society (2007, 485 pages), … and the Perilous Journey (2008, 440 pages—front cover slightly bent), … and the Prisoner’s Dilemma (2009, 381 pages), and The Extraordinary Education of Nicholas Benedict—a prequel (2012, 470 pages—front cover slightly bent). Little, Brown. Ages 9-12 years. Paperbacks in very good condition. Text only. Cash or Venmo.