Once more the night was uneventful, and silent. Once more came the day, and a blazing hot sun poured unveiled caloric on the summit of the terrace, where sultriness drank up the water that oozed through the substance of the jugs. "I've got to do something," Sidney declared. "We can't go on like this." Elaine was already denying herself the food and water she required. "I shall try to invent some means of enticing the creatures to the cave below--and, perhaps, explode a mine. If the watchers on that hovering ship saw me disappear in the hole, it is rather more than likely they would follow, thinking they had me bottled." Elaine always manifested interest, no matter what his scheme. "But how could that possibly be managed, now that you haven't your raft?" "I think by a ladder and platform, the ladder anchored as we had it the day I came up with your assistance, and the platform arranged of bamboo poles, which I can carry down through the passage. It will take me some time to get it ready--but something has got to be done." Elaine's eyes brightened with hope. "Please say there is something I can do to help," she begged. "You work so hard and constantly." "There will be rather warm employment for us both," he assured her, in his former way of cheer, "particularly towards the end." He brought his neglected ladder to the shelter, where Elaine was presently as busy as himself, rewinding the rungs in the creepers, and testing it all for strength. Just what his final plan would be she did not understand, but her confidence in his ability and resourcefulness was almost wholly without bounds. The usual vigilance was not for a moment neglected, but nothing occurred in the world below, save a repetition of the former day's activity on the part of the unseen natives. It was not until well in the afternoon that the Dyaks' plan developed. A breeze had sprung up from the north, bringing gushes of heat and jungle fragrance across the summit of the hill. Then, at length, as if this steadying wind was the final agency for which they had waited, the Dyaks set up a queer, wild chant from various places in the thicket. A few minutes later a cloud of smoke arose from one of their centers. This was followed by several more. A huge, thick smudge was soon rising upward from the earth, and rolling on the breeze to envelop all the headland. The Dyaks had gathered enormous quantities of resinous wood, and had deliberately fired the jungle! CHAPTER XXXV A BATTLE IN THE SMOKE No doubts could be for long entertained as to what the smudge was expected to accomplish. Its dense and suffocating fumes not only rendered a further watch upon the clearing or the trail practically useless, but it seemed to Grenville highly improbable that he or Elaine could for long survive the pungent reek they were soon obliged to breathe.