"Not search the train completely!" shouted an official whom he had questioned, and who, being of sufficient rank himself and of equal importance with the inspector, was not to be easily frightened. "How then? Is a police inspector the only individual capable of searching for spies and discovering them? Is everyone on the line a fool, then, unless he be a policeman? You'll tell us soon that we don't know our own business; as if, indeed, it were possible to miss three such people as you described, or even one of them, particularly when one knows that there were few passengers on the train in question."

It was of no use shouting back at the man; it was of no use engaging in a wordy quarrel with him; and of little service to take note of the covert smiles of the station-master and the sidelong winks he directed at the manager of the sugar factory—a manager now wonderfully transformed—the worthy Herr Winterborgen, who was even smiling. Slowly, little by little, arrogance oozed out of every pore of that perspiring police inspector, and presently he took himself off to his car and drove furiously away, wishing that he had never had this case to investigate, and that, wherever the escaping prisoners were, someone would shoot them.

Meanwhile, let us glance into one of the carriages of that train—that special which had bustled through the station while the inspector was waiting. In one of the compartments sat an aged man, with a Homberg hat of ridiculously small size pressed down over his temples, upon which wisps of hair shone whitely in the sunlight—a man who looked through big goggles at the scenery as it flashed by, and whose lips were hidden behind a drooping moustache of iron-grey colour. Beside him sat a girl, well-grown—masculine one would have almost said—with laughing features, a girl who had spread herself out in the carriage, and, lying back against the cushions, had placed her two feet on the opposite seat, a most inelegant, unladylike, yet possibly comfortable position. And beside them sat a big, bony, healthy individual, whose face was shaded by a broad hat, yet not sufficiently shaded to hide the wide grins which crossed it and denoted the utmost merriment. He was rubbing his two big, strong hands together, laughing, chuckling, and gazing every moment out of the window.

"My hat! My uncle! Crikey!" he exclaimed; "but that has really done it! And what luck we have had, too. To think that we should have been in a compartment which drew up near the signal station where that message about us was shouted by the man in charge. I declare again that you're a regular wizard, Henri, for how else could you have arranged for the train to halt just in that position, and where, thanks again to your knowledge of German, it allowed you at once to hear and understand what was shouted. Let's have the words again."

The old and somewhat delicate-looking gentleman seated beside him turned upon the big man an expansive smile, a mischievous smile, and, pushing his goggles up on his forehead, burst into such a ripple of laughter that his drooping moustache, which seemed so natural, fell from its place, instantly transforming him. It was the jovial, yet cautious, Henri enjoying this amazing adventure to the utmost.

"My boy," he said, as he reached for the moustache and carefully adjusted it, "one moment while I take a glance at myself in the glass over the seat. That's better, ain't it? Quite straight, and makes me look the part to perfection. But what did that signalman shout, you ask? Well, rather an important message, and these are the words as I remember them: 'You'll stop at the station just beyond', he called to the driver; 'there are police there waiting for you, for there's information that there are three escaping prisoners from Ruhleben amongst the passengers, in disguise of course. Understand? Well, pull out and run through the tunnel.'"

It was little to be wondered at that the wits of the fugitives were at once set to work in lightning-like manner. If they were to escape, indeed, and were to avoid the police officials waiting for them at the station so near at hand, they must act instantly, must find some loophole, must alter their plans completely. Already the train was again in motion, for it had only pulled up for a few seconds, and, even while they were debating the matter, were looking at one another enquiringly, and were feeling already as if the case were hopeless, it ran into the tunnel. It was then that Henri gripped his two companions and spoke eagerly to them.

"Quick, to the end of the carriage," he said; "then hop out. It's dark, so that no one can see us. On no account must we be seen on the train when it has passed through the tunnel."

It was a fortunate thing for the trio that the train had been unable to get up any great speed since it got into motion again after leaving the signal station. It did little better than crawl into the tunnel, and, seeing that the station at which it was destined to halt, and where the police were waiting the fugitives, was only a short distance beyond, the driver made no effort to hurry. Thus it followed that the drop from the train was a matter of no great difficulty, particularly for such active individuals as Henri, Jules, and Stuart. Crouching between the wall of the tunnel and the passing train, they listened to it as it rumbled away in the distance towards a mere dot of light which disclosed the far end of the tunnel. Then that dot was of a sudden blotted out of sight, and the rumbling became louder.

"What's that?" demanded Stuart. "Not gone off the rails, I hope, for that will bring a pack of people into the place, and they'll find us."