The day on which this story opens was the seventh since their departure from the Marquesas on their return voyage to the Pacific Coast. They had left behind them their fellow adventurers, some of whom wished to return by steamer, while others were anxious to continue their travels in the fascinating South Seas. So far, smiling skies and sunny seas had been encountered. But this particular day had dawned with a smoky, red horizon, through which the rising sun blazed like a red-hot copper ball.
It had been oppressively hot—torrid, in fact. But although the air was motionless and heavy, the sea was far from being calm. It heaved with a swell that tossed the Nomad almost on her beam-ends at times. That some peculiar kind of tropical storm, or typhoon, was approaching, Nat felt small doubt. A glance at the barometer showed that that instrument had fallen with incredible rapidity. A candle, held in the thick, murky air, would have flamed straight skyward without a flicker.
Dinner was eaten without a change being observable in the weather conditions, and, on coming on deck to relieve Joe at the wheel while he went below to eat, Nat sighted the bit of land toward which they were now being drawn like a needle to a lodestone. In the meantime the weather had been growing more and more extraordinary. The copperish sky had deepened in color till a panoply of angry purple overspread the heaving sea. The sun glared weakly through the cloud curtains as through a fog. But still there had come no wind.
Hardly had the two lads on the bridge of the Nomad realized that they were inexorably being drawn toward the two islands, however, when from far off to the southwest there came a low, moaning sound. It seemed almost animal in character; like the lowing of an angry bull, in fact, was the comparison that occurred to Nat. The sound increased in violence momentarily, while the sky from purple changed to black, and a blast like that from an open oven door fanned their faces. Through this awe-inspiring twilight the Nomad continued her inexplicable advance toward the two islands.
“Here it comes!” shouted Joe suddenly, as, from the same quarter as that from which the wind had proceeded, there came a sudden, angry roar.
“Hold tight for your life!” flung back Nat over his shoulder, gripping his steering wheel with every ounce of strength he possessed.
And thus began hours of stress and turmoil, which the Motor Rangers were ever to remember as one of the most soul-racking experiences of their young lives.
CHAPTER II.
NAT TO THE RESCUE.
“Wow! This is the worst ever!”