Barrons:  “The 537-acre Maryland estate of the late American novelist Tom Clancy has come on the market for US$6.2 million. The author of bestsellers like Clear and Present DangerPatriot Games, and The Hunt for Red October owned the sprawling property about 45 miles south of Washington, D.C., for decades until his death in 2013 at age 66. It includes acres of woods, private beach on Chesapeake Bay and a three-story custom home with a number of amenities suited to a spy fiction writer. The 17,000-square-foot main house has an underground, two-lane shooting range, which “offers an opportunity to practice your marksmanship in complete privacy,” according to listing agent Angel Stevens of Cummings & Co. Realtors.”