"I think it wiser to prepare against a probable wait that may be rather long." He read and understood her impatience with the situation--a situation rendered infinitely more complicated and delicate by what he had dared to say and do the previous afternoon. Once more black dreads that she dared not permit to reveal themselves completely arose to engulf her mind. She could not doubt that Grenville knew, far better than herself, how meager were their hopes of immediate rescue or escape from this exile in the sea. More than anything else, however, she wished to be worthy of and loyal to the man to whom her plighted word had been given. That she owed so much to Grenville already was an added irritation. A braver, finer spirit than she summoned to her needs never rose in a woman's breast. Her eyes met his with a cold look of resolution in their depths. "I know you will show me how to help. I must do my share in everything. Can you tell how long it must have been since anyone was here?" Grenville had never thought her finer--never loved her so madly before. Yet he quelled the merry demons of his nature. "No," he replied, as he took in his hand a bit of bone, bleached cleanly white. "I can't even understand why an island so abundantly supplied with fruits and game, to say nothing of useful woods and the like, should be so utterly abandoned. There seems to be nothing wrong with the place, and much that is quite in its favor." "Perhaps that tiger," she suggested. Sidney shook his head. "It's something that goes a bit deeper--at least, there may once have been something sinister. The natives of all this part of the world are rather accustomed to tigers." Her sense of divination was exceedingly keen. "You think there is something worse? You haven't already encountered something more----" "Nothing," he hastened to interrupt. "The problem of our daily existence affords our greatest present cause for concern--and I frankly admit I considerably relish the prospect of proving we are equal to all that our situation may demand." She was not to be satisfied so readily. "But there may be something wrong with the island?" "Possibly--from a native's point of view." "But--you are almost certain to meet that tiger again." "All the more reason for getting to work at once." He arose in his quick, active manner, and once more surveyed their camp. "A few rocks piled in your doorway," he continued, "and your cave will meet your requirements admirably. I should say mine would better be this small retreat, the roof of which I can readily restore. It is close enough to be neighborly, and is nearer the head of the trail." The smaller cave thus indicated occupied a position suggestive of a sentry's box, before precincts to be guarded. Its opening faced the gateway of the trail, while its size was sufficient for the needs of any primitive man.