Don’t be late. We’ve got to get back to the yacht before we’re missed.”

“But I may have to hide and wait till dark—the fog may clear.”

“We were fools to come, I believe,” said Davies, gloomily. “There are no meeting-places in a place like this. Here’s the best I can see on the chart—a big triangular beacon marked on the very point of Memmert. You’ll pass it.”

“All right. I’m off.”

“Good luck,” said Davies, faintly.

I stepped out, climbed a miry glacis of five or six feet, reached hard wet sand, and strode away with the sluggish ripple of the Balje on my left hand. A curtain dropped between me and Davies, and I was alone—alone, but how I thrilled to feel the firm sand rustle under my boots; to know that it led to dry land, where, whatever befell, I could give my wits full play. I clove the fog briskly.

Good Heavens! what was that? I stopped short and listened. From over the water on my left there rang out, dulled by fog, but distinct to the ear, three double strokes on a bell or gong. I looked at my watch.

“Ship at anchor,” I said to myself. “Six bells in the afternoon watch.” I knew the Balje was here a deep roadstead, where a vessel entering the Eastern Ems might very well anchor to ride out a fog.

I was just stepping forward when another sound followed from the same quarter, a bugle-call this time. Then I understood—only men-of-war sound bugles—the Blitz was here then; and very natural, too, I thought, and strode on. The sand was growing drier, the water farther beneath me; then came a thin black ribbon of weed—high-water mark. A few cautious steps to the right and I touched tufts of marram grass. It was Memmert. I pulled out the chart and refreshed my memory. No! there could be no mistake; keep the sea on my left and I must go right. I followed the ribbon of weed, keeping it just in view, but walking on the verge of the grass for the sake of silence. All at once I almost tripped over a massive iron bar; others, a rusty network of them, grew into being above and around me, like the arms of a ghostly polyp.

“What infernal spider’s web is this?” I thought, and stumbled clear. I had strayed into the base of a gigantic tripod, its gaunt legs stayed and cross-stayed, its apex lost in fog; the beacon, I remembered. A hundred yards farther and I was down on my knees again, listening with might and main; for several little sounds were in the air—voices, the rasp of a boat’s keel, the whistling of a tune. These were straight ahead. More to the left, seaward, that is, I had aural evidence of the presence of a steamboat—a small one, for the hiss of escaping steam was low down. On my right front I as yet heard nothing, but the depôt must be there.