To the casual observer the scene was a very normal one. Four men in a dug-out, yarning and reading; while outside the occasional whine of a shell, the dirty deeds of a Stokes gun, the noises of the trenches filled the air. Nothing unusual, nothing out of the way except—something, an indefinable something. As the Sapper said afterwards there must have been something tangible in the atmosphere—else why did his pulses quicken. He glanced at the Adjutant sitting opposite him engrossed in his book; he looked at Staunton across the table—Staunton, with a slight smile on his lips—and his eyes fixed on Jesson. He looked at Jesson beside him—Jesson, whom he had met that morning for the first time. And all he noticed about Jesson was that his left knee twitched ceaselessly. . . .

He ran over in his mind the day's work. He had met him at about eleven that morning, wandering along the support line with an officer in the Loamshires whom he knew well, who had hailed him and introduced Jesson.

"A recruit—a new recruit," he had said, "for your atrocious trade. He's just left old pimple-faced Charlie, who was writing returns in triplicate as usual."

Now pimple-faced Charlie was his own Major, who habitually did write returns in triplicate; wherefore, after a few remarks of a casual nature in which he elicited the fact that Jesson was a mining engineer and had suddenly been ordered while waiting at the base to join the 940th Tunnelling Company, he took him in tow and showed him round the mine galleries.

Mining work was very active in the sector. Four or five small mines and one big one were going up in the near future, so the tour of inspection had been a long one. That his companion was not new to the game was obvious from the outset; and his pertinent inquiries anent cross-cuts, listening galleries, and the whole of the work in hand had shown that he was keen as well. Altogether a promising recruit, he had mused: quite a find—keen and able, two qualities which unfortunately do not go hand in hand quite as often as one would like. And now Staunton and this find of his were facing one another in silence across the plank table of the dug-out; Jesson, with an expression of polite indifference as befitted a subaltern compelled to listen to a senior officer's story which he didn't want to hear; Staunton, with an enigmatic smile. Then of a sudden Staunton spoke.

"Have you ever studied the question of the importance of matters of detail, Jesson?" he remarked quietly to the impassive figure facing him across the table.

"I can't say that I have, sir," answered the other, politely stifling a yawn.

"You should. A most interesting study. My story concerns points of detail. The imperative thing is to be able to sort out the vital points from all the others; then piece them together, and arrive at the right answer."

"It must be very easy to be led astray, I should imagine; and arrive at the—er—wrong one." Jesson concealed a smile, and waited for the Major to continue.

"Yes and no. It's all a matter of practice." Staunton's imperturbable voice was as quiet as ever. "And anyway, it's only in peace time that it matters very much whether one is right or wrong. Nowadays! Well—à la guerre comme à la guerre." He smiled gently. "But my story. I want you, as an impartial observer, just arrived, with an unbiassed mind, to tell me if you think my joining up of two or three points of detail is a sound one. Both these officers know the points of detail, so your opinion will be more valuable than theirs.