Again Yellow Handkerchief returned to the beach and made a search of the island, and again he returned to the heap of clam-shells. I knew what was running in his mind as well as he did himself. No one could leave or land without making tracks in the mud. The only tracks to be seen were those leading from his skiff and from where the junk had been. I was not on the island. I must have left it by one or other of those two tracks. He had just been over the one to his skiff, and was certain I had not left that way. Therefore I could have left the island only by going over the tracks of the junk landing. This he proceeded to verify by wading out over them himself, lighting matches as he came along. When he arrived at the point where I had first lain, I knew, by the matches he burned and the time he took, that he had discovered the marks left by my body. These he followed straight to the water and into it, but in three feet of water he could no longer see them. On the other hand, as the tide was still falling, he could easily make out the impression made by the junk's bow, and could have likewise made out the impression of any other boat if it had landed at that particular spot. But there was no such mark; and I knew that he was absolutely convinced that I was hiding somewhere in the mud. But to hunt on a dark night for a boy in a sea of mud would be like hunting for a needle in a haystack, and he did not attempt it. Instead he went back to the beach and prowled around for some time. I was hoping he would give up and go, for by this time I was suffering severely from the cold. At last he waded out to his skiff and rowed away. What if this departure of Yellow Handkerchief's were a sham? What if he had done it merely to entice me ashore? The more I thought of it the more certain I became that he had made a little too much noise with his oars as he rowed away. So I remained, lying in the mud and shivering. I shivered till the muscles of the small of my back ached and pained me as badly as the cold, and I had need of all my self-control to force myself to remain in my miserable situation. It was well that I did, however, for, possibly an hour later, I thought I could make out something moving on the beach. I watched intently, but my ears were rewarded first, by a raspy cough I knew only too well. Yellow Handkerchief had sneaked back, landed on the other side of the island, and crept around to surprise me if I had returned.