She was silent for a moment. A sense of constraint was returning at last for their scene of the previous day. "It seems to be rather far away," was all she said. "About another hour--if the breeze and tide continue favorable." It was nearer an hour and a half, however, before they were finally abreast the headland with the tree, and swinging and turning slowly by the island's coast on the surface of a complicated tide. The features of the land had developed practically everything usual to this latitude except habitations of men. That it was entirely surrounded by water was convincingly established. Indeed, it was not an extensive outcrop of some ocean-buried range, and, despite the luxuriance of its various patches of greenery and jungle, it was decidedly rugged in formation. The edge past which the raft was leisurely floating was a broken and cavern-pitted wall of rock affording no promise of a landing. Above this loomed the solitary tree that Grenville had seen from a distance. Nothing suggestive of hearth smoke arose against the sky from one end of the place to the other. This one vital fact, in her excitement, Elaine entirely overlooked. She likewise failed to note the look of concern that Grenville could not have banished from his eyes. The prospect of reaching a dry, firm soil outweighed her immediate worries. "Couldn't we paddle in closer?" she said. "Where do you mean to land?" "Where the Fates shall please," he answered, grimly. "Without even a line for me to take ashore we must not be over fastidious." "We could swim--if we have to," she told him, bravely. "We seem to be floating farther out." They were, at that particular moment. The powerful current carried them swiftly seaward a considerable distance, till at length the raft was drawn to a species of whirlpool, some two hundred yards in diameter, the inner rim of which was depositing weed at the edge of something like an estuary, indenting the shore of the island. On the huge circumference of this whirlpool they were finally rounding towards the one bit of beach that Grenville had been able to discover. Yet when they approached within almost touching distance of this sunlit strand, the current failed, permitting the breeze to waft them again towards the center. "Stand by to go ashore," said Grenville, resolving suddenly on his course, and overboard he slipped, at the float's outer edge, and, using his legs like a powerful frog, he pushed at the raft with sufficient force to overcome the action of the wind. For a moment his efforts seemed in vain--and then the clumsy affair nosed reluctantly shoreward an inch, and was once more assisted by the tide. Ten feet out he found the water shallow and, planting his feet on the solid sand, drove the raft at once to the estuary's edge, where Elaine leaped lightly ashore.