“Let us give him time to collect his thoughts and not pester him by talking now,” he said. “Since I have heard your stories, I am just as curious as you are to find out the truth of the matter, and just where this Dr. Sartorius fits into the puzzle; for I am sure that he is a factor, and no beneficent one, in the case.”
A little later Dr. Chalmers decided that it would not be necessary to remove the injured man to the mainland that night. In fact, he was inclined to think that such a course might prove harmful. They all, therefore, determined to remain on the island all night. The boys were perfectly willing to adopt this course. They were all dog tired by the strenuous day which they had passed through, as were, indeed, all of the party. Dr. Sartorius sat sullenly in one corner of the shanty all the evening, only speaking in monosyllables, but the boys did not trouble themselves about him. After a hearty supper, all hands turned in and slept the sleep of the exhausted till morning.
The first thing when he awoke Nat looked around for their queer guest. He was not in the shanty, and, leaving the others still asleep, Nat set out on a tour of investigation. Somehow he deeply mistrusted and suspected this black-bearded stranger, and when he found him missing he at once surmised that all was not well. He bitterly regretted that they had not openly voiced their suspicions the night before, or at least kept a watch on the man. But it was too late now.
Full of apprehension, but of what he did not know, Nat hastened to the cove. The boat in which they had come ashore was gone, and, worse still, the Nomad was missing from her moorings!
“The scoundrel!” cried Nat indignantly. “This is some of his work, I’ll bet a dollar. Oh, what wouldn’t I give to get my hands on him! But what are we going to do now? Here we are practically marooned on this island. Thank goodness we have the wireless; otherwise we’d be in a bad fix. Nobody comes near this place but fishermen, and they don’t put in frequent appearances.”
As he hurried back to the hut, burning with indignation, Nat formed a theory concerning the disappearance of the small boat and the larger craft. It was plain that Sartorius wished to get ashore without landing with the party. Nat believed, in the light of recent events, that the man had a notion that the boys meant to communicate their suspicions to the authorities. But how he had succeeded in running the Nomad alone and single-handed was a mystery which was not solved till later.
When he burst into the hut, full of the story of the vanishing of the two boats, Nat found Dr. Chalmers bandaging Mr. Jenkins’ head and placing fresh dressings upon it. The bandages had been extemporized from a stock of clean linen the boys had along with them. The group within the hut was listening eagerly to something that the injured man was saying; but Nat’s news, which he blurted out as soon as he entered, quite drew away attention from their wounded guest, whose hurt, it transpired, was nothing more than a bad scalp wound.
“Boys, the boats have gone!” was the way Nat announced his news.
The others stared at him only half understandingly.