Two sailors in piratical dress could be seen to emerge at intervals from the cabin.
Suddenly the gale was on with terrific force, the sea rose in great waves, and the tiny ship rocked in a perilous manner.

Great billows of water swept its decks.

Merton Gill stared in amazement at these phenomena so dissonant with the quiet starlit night.

Then he traced them without difficulty to their various sources.

The gale issued from the swift revolutions of that aeroplane propeller he had noticed a while ago.