As the Capella's cutter came alongside, Vernon agilely scrambled up the "monkey ladder" and gained the deck.

"Hulloa, old man!" exclaimed a well-known voice.

Vernon looked at the speaker. He knew the voice, but for a moment he failed to recognize in the oddly garbed youth his chum Ross Trefusis. Then he grinned broadly.

"My word!" he exclaimed. "You do cut a pretty figure."

Had they been of any nationality but British, the lads would have fallen on each other's necks and perhaps kissed each other. Instead, they stood a yard apart and laughed—but their mutual joy was none the less genuine.

"So you've come to fetch the German Leutnant and his boat's crew," said Ross, after Haye had been introduced to the Flight-Sub. "He's somewhere below. You'll recognize him right enough."

"Eh?" asked Vernon incredulously.

"Rather!" declared Ross emphatically. "You'd never guess. It's our old pal, Hermann Rix, late of U75. No wonder he's tearing his hair, for he must have broken his parole. He knew me directly he came over the side, and didn't forget to rub it in. You should have seen his face when, in the midst of his beastly gibes, the old Capella came snorting up."

With Jan acting as interpreter, Vernon put his case before the Dutch skipper, who seemed only too delighted at the way events had turned. His satisfaction at getting rid of his Hunnish visitors was evident, in spite of the stolidity of his manners.

"I want no pirates on board the Hoorn," he said. "Take them and welcome!"