"How do you mean, bluffing?" I asked.

He nodded his head, sagely.

"It's my hidea he knows you saw that light, just as bloomin' well as I do."

Plummer looked up from his game, at this speech; but said nothing.

"Then you don't doubt that I really saw it?" I asked, with a certain surprise.

"Not me," he remarked, with assurance. "You hain't likely ter make that kind of mistake three times runnin'."

"No," I said. "I know I saw the light, right enough; but"—I hesitated a moment—"it's blessed queer."

"It is blessed queer!" he agreed. "It's damned queer! An' there's a lot of other damn queer things happenin' aboard this packet lately."

He was silent for a few seconds. Then he spoke suddenly:

"It's not nat'ral, I'm damned sure of that much."