“Oh!” exclaimed Ling, his face breaking out into a smile, “I undelstand now. No, mastel; nobody not come neal camp. If anyone had come he would be dead by now; me shoot any stlangel quick, without ask any questions.”

“All right!” answered Frobisher, permitting himself to be almost persuaded against his better judgment that the man was honest, so absolutely child-like and bland was his manner; “get away to your own quarters and secure as much sleep as you possibly can, for we have a long march before us to-morrow.” And he turned away, to show Ling that his presence was no longer required.

But at the moment of turning he could almost have sworn that he caught sight of Ling’s lips parted in a sardonic smile. Frobisher wheeled again immediately, but when he once more looked at the man, the Korean’s face was as indifferently emotionless as though carved from stone, and Murray was compelled to acknowledge that the expression which he thought he had noticed must have been due to the flickering shadows cast by the lantern that he carried in his hand.

Thus dismissed, Ling trotted off and threw himself down beside the inner wheels of one of the carts, covered his face with a fold of his ample cloak, and was, to all outward appearance, fast asleep on the instant. Frobisher, after regarding the recumbent form for a long minute or more, silently tiptoed away to his post of observation, having reached which, he extinguished the lantern, making sure, first of all, that his matches were ready to hand in his pocket, so that the light might not prove a convenient target for any prowling sharpshooter of the enemy.

He remained motionless in the one position for at least half an hour, and then, beginning to feel a trifle cramped from his spell of inactivity, made up his mind to traverse the sleeping camp, in order to assure himself fully that all was as it should be. Leaving the lantern behind him, he made his way slowly and silently, by the dim light of the stars, round the sleeping bivouac. And it was not until he had completed the entire circumference of the circle and was back again at his starting-point, that it occurred to him that he had not particularly noticed Ling, who, of course, ought to have been lying asleep where Frobisher had left him.

At once the Englishman’s dormant suspicions again awoke into full activity, and, lighting the lantern, he proceeded to repeat his investigation, going his rounds in the opposite direction this time; and, sure enough, when he came to the place where he had left Ling lying, the spot was vacant—Ling had disappeared.

“Now what in the world is the explanation of this?” Frobisher asked himself testily. “I’m certain there is something fishy about the fellow, and I would give a trifle to be able to discover what game it is that he’s playing. Where, in the name of Fortune, has he got to now, I wonder?”

As the thought passed through his mind he heard a sudden, suspicious sound right on the other side of the camp. The idea it conveyed to him was that a man had tripped or fallen over something; and this suggestion was strengthened when, immediately afterward, certain low muttered words in the Korean tongue, which sounded remarkably like a string of hearty expletives, issued from the same quarter. And the voice was undoubtedly that of Ling.

Frobisher whipped the revolver out of his pocket and leapt like a deer in the direction of the sound, arriving on the spot just in time to discover Ling sitting upright on the dewy grass, alternately rubbing his head and his shins. The Englishman stood looking down at the other for a few moments, and in that brief interval found time to notice that his feet were soiled and plastered with fresh clay, which had certainly not been on them when Frobisher had left him half an hour previously. It was also certain that he could not have accumulated that clay within the confines of the camp, for the space where the wagons had been drawn up was carpeted entirely with grass, and there was no vestige of clay anywhere within the circle. Frobisher therefore felt more convinced than ever that Ling was something very different from what he represented himself to be.

“Well, Ling,” he remarked sternly, after a pause, during which the Korean had been vigorously rubbing himself, “what’s happened to you? Where have you been; what have you been doing?” And as he spoke he brought his right hand slightly forward, so that the rays of light from the lantern which he carried fell upon the gleaming barrel of his revolver.