It was here fairly light; indeed, a single ray of sunlight played upon the splashing water in the little stream, and the spray sparkled in the gleam. But still very little sunlight ever entered the place. The great wall of rock that reared itself in a plumb-line two thousand feet into the sky, overshadowed it completely on the one side; and on the other were the great trees of this primæval forest towering up three hundred feet or more, and extending their branches above across almost to the rock, though below, the nearest trunk was quite fifty yards away. They stood, in fact, upon the edge of a semi-circular clearing that extended for a distance of perhaps a hundred yards, its radius being about fifty yards if taken from the centre of the exposed portion of the cliff. At each end of this space the trees and undergrowth closed in again upon the rock in an impenetrable tangled mass, denser, and darker even, than that through which the explorers had been slowly cutting their way.
Some of the Indians were grouped round the stream, two or three enjoying the luxury of wading in it, or sitting on the bank and dangling their feet in the clear cool water. Matava and the others were busy upon some kind of rough carpentering. Templemore and Elwood saw that the stream issued from a hole in the rock near one end of the clearing; and this was of itself a matter for surprise. They were, however, still more astonished when Monella, with a strange smile, pointed out another aperture in the rock near the centre of the open portion of the cliff. It was about sixteen or eighteen feet from the ground, and was not unlike a window or embrasure in a stone building of considerable thickness. Within—at a distance of eighteen inches or so—it seemed however to be closed by solid rock.
The two gazed in silence at this unexpected sight; Elwood showing in his eager manner the hopes that it aroused, and Templemore pondering in silent wonder as to what it all meant. That Monella’s ‘calculations’ had led them to a most unexpected result thus far—whether by accident or otherwise—he could not but admit. Of the fact there was now no doubt. But a clearing of this character, opposite to what looked like an opening in the rock, or entrance to a cave, was a fact too startling to be the outcome of a mere coincidence, or a lucky chance. He knew that a party of explorers might spend years—centuries, indeed, if they could live long enough—in a search for such a place in that forest and never find it, unless guided by the most exact information. Then the fact that the opening was so nearly in the centre of the clearing had a significance of its own; the question whether it was actually the entrance to a cave or merely a curious accidental hollow in the rock was thus answered, as it were, in advance. Besides, just below the ‘embrasure’ a small stream trickled out, and, falling down the rock, found its way amongst the stones to the larger water-course beyond. Here there seemed presumptive evidence that the space at the back of the rock was hollow—was, in fact, a cave. But in that case the entrance must have been purposely closed by human hands. If so, by whom? and when? and why?
These thoughts revolved rapidly in Templemore’s mind while he stood looking at the rock. He glanced around at the giant trees, and thought of the almost impenetrable character of the forest they had come through, and he felt that, if the ideas that had come into his mind were correct, it was impossible to suppose that such a cave could be the retreat say, of any unknown Indians living at the present time. Therefore, the puzzle seemed the greater. Who could have been there before them—and how long ago?
But Matava now approached the cliff bearing a sort of rough ladder that he had constructed under Monella’s directions; this he placed against the rock just under the opening, planting the ends firmly in the ground. He had cut down two young saplings and, partly by means of notches, and partly by twisting some strong fibres to hold them, had fastened cross-pieces at short intervals, and so fashioned the whole into a very serviceable ladder.
Monella signed to him to hold it firmly, and proceeded to test its strength. Then, satisfied as to this, he quietly mounted it till he could insert his hand into the aperture. After a moment or two he called to Elwood and Templemore to assist in steadying the ladder; and, when they had come to the assistance of Matava and another Indian who was with him, Monella leaned over into the opening and, exerting all his great strength, pushed away the stone that was closing it, exposing to view a cavern beyond. After a brief look inside, he asked for a lighted lantern and a long stick, and, while these were being handed up, the expectations and curiosity of his companions became excited to a lively degree. The Indians, who had been amusing themselves in the water, came crowding round, half pleased, half afraid at this unexpected development of events.
“You’re never going to venture into that place?” Templemore asked. “It may be full of deadly serpents. For Heaven’s sake do not be rash enough to risk it. Send one of the Indians——”
Monella replied with a look—a look that Jack remembered for many a day after. His eyes simply flashed; and then he said quickly,
“Did you ever know me bid another go where I would not venture myself?”