"Heat wouldn't do that!" I said.
"N—no," he said, doubtfully.
We went on with our work again—occasionally exchanging an odd word or two. Presently, after a little time of silence, I bent forward and asked him to pass me up the spike. He stooped and picked it up from the deck, where it had tumbled. As he held it out to me, I saw the stolid expression on his face, change suddenly to a look of complete surprise. He opened his mouth.
"By gum!" he said. "It's gone."
I turned quickly, and looked. And so it had—the whole sea showing clear and bright, right away to the horizon.
I stared at Plummer, and he stared at me.
"Well, I'm blowed!" he exclaimed.
I do not think I made any reply; for I had a sudden, queer feeling that the thing was not right. And then, in a minute, I called myself an ass; but I could not really shake off the feeling. I had another good look at the sea. I had a vague idea that something was different. The sea looked brighter, somehow, and the air clearer, I thought, and I missed something; but not much, you know. And it was not until a couple of days later, that I knew that it was several vessels on the horizon, which had been quite in sight before the mist, and now were gone.
During the rest of the watch, and indeed all day, there was no further sign of anything unusual. Only, when the evening came (in the second dog-watch it was) I saw the mist rise faintly—the setting sun shining through it, dim and unreal.
I knew then, as a certainty, that it was not caused by heat.