But only one of Chichen's natural wells served as water supply. This flower-bordered path we follow leads to the Sacred Cenote, round which grim rumours have long collected; rumours which it is now our privilege to confirm as facts. As we approach, the trees on either side give a denser shade. A few yards further and the path debouches into a small semicircular space with tiers of stone running round it to the left, suggestive of a tiny amphitheatre. In front of you is a small stone building, one-roomed, possibly the scene of the penultimate acts of the terrible dramas played so many centuries back in this tropic woodland. A step more and you are on the brink! Hold the branch of that sapota sapling fast, for the fall is sheer! Seventy feet below you in a huge limestone basin, two hundred feet or more in diameter--so nearly a perfect circle that as you look into it you find it hard to believe it has not been engineered by man, that it has worn thus from the infinitely slow corrosive action of the rainfall and natural drainage water--seventy feet beneath you lies the black, still water. It is an inky black. High above it on the limestone sides of the great hole sprawl ferns, cactus, and orchid; higher still, fringing its verge, thorn-bushes and pale-green acacias, the grey-barked sapota, and the heavy-leafed ceibo-tree raise their branches into the sunlight. But the sun never touches that gruesome, deadly still, pitchy lake. Its very glassy stillness sends a shudder through you. In its sepia depths what wonder that Mayan priest and people saw the home of the terrible Rain God, at whose will the land might smile with plenty or the spectre of famine lay his bony hand on the shrinking townsfolk?