It was the morning of Friday, August 21, 1896, and Somerset County Detective George Totten had just spent his second sleepless night alone in a snake-infested cave on the Sourland Mountain in Hillsborough, New Jersey. On Wednesday morning, he had set out from Somerville in a small wagon loaded with enough provisions to camp for several days. As he approached the mountain, he stopped at a farmhouse near Rock Mills to put up his horse and take what he needed from the wagon - making sure that on...