Max, as he was by far the better known and ran the greater risk of detection, had, in addition, his brown hair dyed a much darker hue and his eyebrows thickened and made to meet in the centre. A few lines skilfully drawn here and there about his face gave him the appearance of a much older man than Dale, and enabled them to pose as brothers aged about twenty-eight and twenty respectively. Their hair was allowed to run wild and mat about their brows and ears; hands and wrists were left, much to their discomfort, to get as grubby as possible, and in the end they were ready to meet the gaze of all as Belgian workmen of the most out-and-out kind.

The necessity for the constant renewal of their various disguises was not overlooked, and the hairdresser was prevailed upon to part with a supply of his dyes and to tell them exactly how and when to apply them.

Max of course could maintain the part of workman to perfection, even if questioned at length, but Dale was under the necessity of answering only in monosyllables, as his knowledge of the language was at present not very great. With Max at his elbow, however, this was not a serious drawback, and neither anticipated any difficulty on that score.

Max was now a broad-shouldered, well-built young fellow of twenty. He was not much above medium height, but his rowing and running at Hawkesley and his hard work in the various shops of the Durend concern had given him a muscular development that most of the real workmen might have envied. His responsibilities as stroke at college, and, later, as the future head of the firm, had given him a self-reliant attitude of mind that was reflected in his bearing, and enabled him to maintain with unconscious ease his sudden increase in years over his more youthful-looking comrade.

Dale was still slim and boyish-looking. He was wiry enough, however, and was, as we have seen, extremely cool and courageous in any tight corner. He was quick, too, and the pair made an ideal couple to hunt together. Had Schenk known that they were bending all their energies to the task of hindering his use of the Durend workshops for the benefit of the Germans he would probably have bestowed more than a passing thought upon them. And had he had an inkling that they were at the bottom of the shrewd blow already dealt him within the sacred precincts of his office he would, no doubt, have spent a sleepless night or two.

The few days that had elapsed since Max and Dale left Liége had already witnessed yet another development in the rapid conversion of the Durend workshops into a first-class manufactory of war material for the German army. A large building on the outskirts of the town had been taken over and converted into a filling-shop, and the shells manufactured within the works were conveyed thither on a miniature railway, and there filled with high-explosive drawn from a factory situated about a mile and a half away, well outside the limits of the town. This new shop was being staffed with men drawn partly from Germany and partly from former workmen of the less determined sort, who were gradually returning to work under stress of hunger.

On Max and Dale applying for work they were promptly drafted to this shop. Fortunately for them, perhaps, the foreman who was now engaging fresh workmen was a man sent from Germany, a bullying, overbearing, Prussian foreman who was expected to bring the methods of the Prussian drill-sergeant to bear upon the poor half-starved wretches applying for work, and to reduce them to a proper state of submission. Max had no difficulty in satisfying the man, especially as he made no demur to working in the night shift. Few workmen cared for the night shift, and the foreman was therefore the more ready to clinch the bargain. Soon Max and Dale were being shown the way to fill the shells and finish them off, ready to be sent on their mission of destruction.

"Things couldn't have happened better, Dale," remarked Max at the first opportunity.

"Why, Max? We are safe inside; is that what you mean?"

"Not exactly. What I mean is our being sent to the filling-shops. It's no end of a piece of luck."