Bill had heard about the Florida Cypress Swamps, and knew them to be a trackless labyrinth of swamps, lagoons, creeks and low, fertile islands, all deeply buried in the shadows of a mighty cypress forest. Twilight was deepening over the earth now, as the red ball of the sun sank below the horizon. Bill thought he could just discern the first outlines of the big trees; then all was dark, and the amphibian roared on into the maw of black night.