He told her nothing of what had occurred—but soothed and quieted her with the assurance that they would be rescued soon.

CHAPTER XXV

The engine stopped; and, climbing the steps to look forward, Denman saw the bridge deserted, and the whole ten surrounding an equal number of strong boxes, stamped and burned with official-looking letters and numbers. Farther along were the provision; and a peep astern showed Denman the drifting boats.

The big Gigantia had disappeared in the haze that hid the whole horizon; but up in the western sky was a portent—a black silhouette of irregular out-line, that grew larger as he looked.

It was a monoplane—an advance scout of a scout boat—and Denman recognized the government model. It seemed to have sighted the destroyer, for it came straight on with a rush, circled overhead, and turned back.

There was no signal made; and, as it dwindled away in the west, Denman's attention was attracted to the men surrounding the boxes; only Munson was still watching the receding monoplane. But the rest were busy. With hammers and cold chisels from the engine room they were opening the boxes of treasure.

"Did any one see that fellow before?" demanded Munson, pointing to the spot in the sky.

A few looked, and the others answered with oaths and commands: "Forget it! Open the boxes! Let's have a look at the stuff!"

But Munson spoke again. "Forsythe, how about the big fellow's wireless? We didn't disable it. He has sent the news already. What do you think?"

"Oh, shut up!" answered Forsythe, irately. "I didn't think of it. Neither did any one. What of it? Nothing afloat can catch us. Open the box. Let's have a look, and we'll beat it for Africa."