Holcombe smiled.

"Think yourself jolly lucky, my festive volunteer," he rejoined. "You've generally dry decks, plenty of room to move about, and enough variety of companionship to save you from quarrelling with your messmates through sheer boredom. Try a destroyer for a change, and then see if you are of the same opinion. By the by," he added, "heard anything of the Moke?"

"Sylvester? Rather!" replied Farrar. "He's a prisoner in Hunland. Collared at Mayence when war broke out. Last I heard of him was that he was at Ruhleben."

"Poor bounder!" muttered Holcombe. "Was his governor collared too?"

"No; the Moke appears to have done rather a smart thing," answered Farrar. "He had a pal with him, it appeared, and the pal was taken queer and had to go to hospital. Sylvester had good reasons for supposing there was trouble ahead on the political horizon, so he bundled his parent down to Basle and made him promise to stop there until he heard from him. Meanwhile the Moke goes back to Mayence and stands by his chum, knowing that there was a thousand chances to one that he would be detained—and he was."

"Sort of Pythias and Damon, eh?" remarked the engineer-lieutenant.

"Sporty of him," added Holcombe. "Hullo, this looks a bit rotten. We're running into a fog."

The train was nearing a lofty double-spanned bridge across a wide river. The hitherto double track had merged into a single one, as the railway swept through a deep cutting on to the embankment that formed the approach to the main structure. Patches of mist were drifting slowly down the river, and although it was possible to see from shore to shore, the low-lying valley was blotted out by the rolling billows of vapour.

A great-coated sentry pacing resolutely up and down was a silent testimony to the importance of the bridge, and to the vigilance of the authorities, while a little way from the embankment could be seen a "blockhouse" outside of which other members of the guard were "standing easy."

Half way across the bridge the train pulled up. Immediately windows were opened and the long line of carriage windows were blocked with the faces of the curious bluejackets, the men taking advantage of the stop to engage in a cross-fire of chaff with the occupants of the adjoining carriages.