"Really, I don't think I can," said he, speaking like a person exhausted. "I can't," added Max, faintly, "it is as much as I can do to maintain my hold." At this moment a voice was heard, calling out apparently from a distance, "Hilloa! where are you? Hilloa!" It was hoarse, strained, and distressed. Almost immediately the cry was repeated, much nearer at hand, as it seemed; and then, a third time, faint, and distant as at first. I was horror-stricken; the cry sounded strange and fearful, and I did not recognise the voice. Then it occurred to me that it must be Morton, who had swum out farther than the rest, and losing sight of the boat for a moment in the swell of the sea, had become bewildered and alarmed. This might easily happen; if but the length of a wave distant we should be invisible to him, unless both should chance to rise on the swell at the same time. The moon, too, had just passed behind a dark mass of cloud, and the sea lay in partial obscurity. I now heard Browne and Arthur shouting, in order, as I supposed, to guide Morton by the sound of their voices. I, too, called out as loudly as I was able. For a moment all was still again. Then I heard some one say, "There he is!" and a dark speck appeared on the crest of a wave a little to the right. At this moment the moon shone out brightly! and I saw that it was Morton, swimming toward us. He reached the boat panting and out of breath, and catching hold near me with an almost convulsive effort, remained some minutes without being able to speak a word. Arthur, who had observed Max's struggles to get into the yawl, now swam round to where Morton and I were hanging on, and taking hold also, his additional weight depressed the gunwale nearly to the water's edge, when he got his knee over it, and at last, by a sudden effort rolled into the boat. He then helped me to get in, and we two the rest. Morton said that after swimming but a short distance from the boat, as he supposed, he found himself getting tired and very weak, and on turning, greatly to his surprise, could see nothing of us. In reality, however, there was nothing surprising in this, his face being on a level with the surface, and the boat with neither sail nor mast up, being much less in height than the long smooth swells. Perceiving how great was his danger, and becoming somewhat alarmed, he had called out in the manner described: when he heard us shouting in return, he was actually swimming _away_ from us, and it was only by following the direction of our voices that he had at last reached the boat. That night we kept no regular watch as we had hitherto done, or at least we made no arrangement for that purpose, though one or another of us was awake most of the time, watching Johnny, who continued, however, in the same deep lethargic slumber.