In less than a quarter of an hour after the discovery of the outbreak, the fire had taken such a firm hold that all attempts to subdue it were hopeless.

And now von Hauptwald, in the disguise of a Yankee deck-hand, was being rowed towards a craft which he would have given almost anything to avoid—a British cruiser.

Still, he was not dismayed. The chances of detection were absurdly small. None of the Tehuantepec Girl's crew knew his true personality except the captain, and he was to be handsomely rewarded as soon as the spy was safe in German territory. On the other hand, there might be one amongst the 655 forming the complement of the Oxford who might recognize the one-time doctor who had lived at Devonport.

"Let's get out of his way," suggested Vernon. "We'll inform the Commander, and he will order him to be put under arrest."

"I'm not going to budge," declared Ross. "If he sees us, what can he do?"

"I'm not afraid of him," protested Haye.

"Very well, then; let's stop where we are. He's got to know sooner or later."

The first boat had already delivered her human cargo Upon the cruiser's quarter-deck. As each man's name was taken down by the master-at-arms he was sent forward. The first mate remained in conversation with the Commander until the arrival of the Tehuantepec Girl's skipper.

Von Hauptwald was one of the last men to come aboard. As he swung himself over the rail he gave a swift glance at the group of officers. His eye caught that of Ross Trefusis.

For a moment the spy thought that he was mistaken, but a second glimpse confirmed his suspicions.