What, then, was the reason of their long delay? They could scarcely be waiting for reinforcements. They would hardly be dreading the island's "spirit" now, since the sounds had practically ceased, and one man had dared ascend the cliff with a knife between his teeth. That they feared an open attack by day and dreaded the tiger by night was the only tenable theory that Grenville could devise. Yet the fact of the matter was that, until the cavern "spirit" should be absolutely silenced, the superstitious Dyaks could only be forced by the bulldozing threats and ferocity of their fiendish leader to set foot upon the land. It was he who had sent the climber up the wall, having thrust a pistol behind the fellow's ear. A certain tragic outcome of this premature adventure had been wholly attributed by the victim's companions to the anger of the wailing soul who inhabited the headland. The bridge, constructed of bamboo supports, was a simple affair, completed and ready by sunset. Before the darkness was absolute, Grenville conveyed it along to the eastern jutting of the cliff, slid it down to a ledge below the level of the terrace, and easily thrust the end across to the nearest tree, where it rested securely on the branches. He found that it bore his weight remarkably well. With an ordinary length of pliable ladder he could reach the ground beneath the tree without the slightest difficulty, thereby escaping all the undergrowth and broken rock that would render a straight descent from the brink not only a noisy piece of business, but likewise one of considerable hazard and discomfort. And descending thus, instead of employing the trail, he could certainly expect to escape the shrewdest observation on the part of any native set to watch for some night adventure. Indeed, so alluring became the prospect of leaving the hill, to conduct some helpful and informing explorations, that he could scarcely wait for the shadows of night to settle on the island before he should test his apparatus. Elaine was frankly and confessedly alarmed when at length he could resist the temptation no longer and announced his intentions for expending a portion of the evening. He set an alarm at the gate on the trail, however, and, arming himself with his heavy, cleaver-like implement for chopping, instructed his worried companion to fire the cannon without delay should attack develop in his absence. "I am sure you will have no visitors, but, in case you do, don't wait to see who it is, or how many," he said; "let the little gun count the numbers." "But suppose--it might be you!" "I shall not return that way. You may look for me back in fifteen or twenty minutes at the most. I feel it's important to know what is going on, as well as to gather a bit of fruit, and see what I may be enabled to do by way of setting some traps for game. If one of my snares could be brought a trifle closer, it might provide us with the meat we certainly ought to have."