Besides being desirous of meeting with Indians, Lieutenant Carey was most curious concerning the formation of this strange mound. Until he had seen the smoke rising from its summit, he had believed it to be merely a growth of tall forest trees surrounded by lesser trees and bushes that grew smaller as they neared the water. This is a common feature of that level Southern country, where the outer lines of vegetation are stunted by the constant high winds. Behind their protection, the inner circles of trees rise higher and higher until they attain a maximum size, and present an appearance of hills and mounds that proves most deceptive to strangers. The character of the smoke rising from the summit of this one had proved it to be something more than one of these ordinary tree mounds. Consequently the explorers were not surprised, after making their toilsome way through a forest of trees bound together with luxuriant vines, and brilliant with the blossoms of flowering air-plants, to find a veritable hill of earth rising before them. The forest encircled it, but ended at its base, and its sides were clothed only with a low growth of shrubs. They had hardly begun the ascent when they ran across a narrow but well-worn path leading to the summit.
On reaching the top they were disappointed to find it as lonely and unoccupied as the forest through which they had just passed. What they did find was a small cleared space from which even the grass had been worn away, and in the centre of which stood a sort of an altar of rough stones. It was about six feet square by four high, and was built of the ordinary coralline rock of the 'Glades. From this, or near it, the smoke must have ascended; but they looked in vain for ashes or other traces of a recent fire. The appearance of the altar showed that fires had been built on it; but there was nothing to indicate that one had burned there within an hour, and the mystery of the smoke became greater than ever.
If they had only been familiar with the Seminole method of making signal smokes, they would not have been so puzzled. A bright blaze of dry grass is smothered for an instant by a thick branch of green leaves. This is lifted and dropped again as often as the operator wishes to make a puff of smoke. Then the grass is allowed to burn out, and the wind, quickly dispersing the light ashes, removes every trace of the fire.
While disappointed and puzzled at finding no remnants of the fire that they were certain had recently burned there, nor of those who had lighted it, the explorers were enchanted with the beauty of the scene outspread on all sides of them. To the west the sun was sinking in wonderful glory behind the distant belt of cypress forest. Everywhere else the brown 'Glades, dotted with blue islands, seamed with the green threads of interlacing channels, and flashing with bits of open water, stretched beyond the limits of their vision. Over them hung a tremulous golden haze in which all objects were magnified and glorified. The all-pervading silence was only broken by the occasional rush on heavy pinions of flocks of snow-white ibises home-returning from their distant fishing-grounds.
"No wonder the Seminoles love this country, and dread the very thought of leaving it," said Sumner, at length breaking the silence in which they had gazed on the exquisite scene.
"Yes, no wonder," replied the Lieutenant; "for in all my travels I don't know that I have ever seen anything more beautiful. But the most interesting of it all to me," he continued, "is this mound. It is evidently a structure of human erection, and must be contemporaneous with the famous earth pyramids of Mexico. Perhaps it was raised by the same wonderful prehistoric race. I have examined many of the well-known shell mounds of Florida, including those of Cedar Keys, and from there at various places down the west coast. I have also seen the great Turtle Mound on the Atlantic side, and those on the St. John's River; but all of them were evidently feast mounds, and showed in themselves the reason for their existence. I have heard of the earth mounds and ancient canals of the upper Caloosahatchie and Fish-eating Creek, but I have never heard it even intimated that similar structures might be looked for in the Everglades. Consequently I regard this one in the light of an important discovery. It is certainly sufficiently so to warrant us in spending to-morrow on this island investigating the mound as thoroughly as our means will allow."
"Doesn't that altar look as though the mound had been used as a place for offering sacrifices?" asked Sumner.
"No; that altar, as you call it, is evidently of recent construction, and was probably built by the Indians now inhabiting this country as a place from which to make signal smokes, or possibly as a sepulchre. We will try to find out which to-morrow. These mounds were undoubtedly erected as places easy of defence, and perhaps this one may yield us some ancient weapons, as the 'kitchen middens,' or feast mounds, of Cedar Keys have so abundantly. I have seen quantities of celts and other stone implements taken from them, while the most exquisite quartz spear-head I ever saw was taken from a Caloosahatchie mound, which from descriptions must be very similar to this one. Oh yes, we certainly must spend another day on this island. Now we'd better be going, for it will soon be dark, and—"
Here the Lieutenant was interrupted by two shots fired in quick succession from the direction in which they had left Worth and Quorum.