Where do they hide the boy after they kidnap him in the 1907 short story The Ransom of Red Chief by O Henry?

In "The Ransom of Red Chief" by O. Henry, the kidnappers hide the boy, Johnny Dorset, in a cave in the hills near the town of Summit, in Alabama. They hope to ransom him for a large sum of money, but their plan backfires when Johnny turns out to be a handful.