Tommy nodded. "It's a good egg," he observed. "I think old whiskers is by way of being rather grateful." Then he paused. "But what swine those German beggars must be not to have stopped! They must have seen what had happened."

"I wonder what he meant by hinting that they'd done it purposely," I said.

Tommy laughed. "I don't know. I asked him in the cabin, but he wouldn't say any more. I think he was only talking through his hat."

"I'm not so sure," I said doubtfully. "He seemed to have some idea at the back of his mind. I shall sound him about it later on."

With the wind holding good and a strong tide running, the Betty scudded along at such a satisfactory pace that by half-past twelve we were already within sight of Gravesend Reach. There is no more desolate-looking bit of the river than the stretch which immediately precedes that crowded fairway. It is bounded on each side by a low sea wall, behind which a dreary expanse of marsh and salting spreads away into the far distance. Here and there the level monotony is broken by a solitary hut or a disused fishing hulk, but except for the passing traffic and the cloud of gulls perpetually wheeling and screaming overhead there is little sign of life or movement.

"You see them two or three stakes stickin' up in the water?" remarked
Mr. Gow suddenly, pointing away towards the right-hand bank.

I nodded.

"Well, you keep 'em in line with that little clump o' trees be'ind, an' you'll just fetch the crick nicely."

He and Tommy went forward to take in the spinnaker, while, following the marks he had indicated, I brought the Betty round towards her destination. Approaching the shore I saw that the entrance to the creek was a narrow channel between two mud-flats, both of which were presumably covered at high tide. I called to Joyce to wind up the centre-board to its fullest extent, and then, steering very carefully, edged my way in along this drain, while Mr. Gow leaned over to leeward diligently heaving the lead.

"Plenty o' water," he kept on calling out encouragingly. "Keep 'er goin', sir, keep 'er goin'. Inside that beacon, now up with 'er a bit. That's good!"