Believing my best policy would be to join those busied on deck, just as though I belonged among them, I crept down the forecastle ladder, and worked my way aft beneath the black shadow of the port rail, until able thus to drift unnoticed into a group tailing on to a mainsail halliard.

With all their coolness and their undoubted skill in boat handling, there was grave danger, with the mainsail set, that, at any instant, wind and wave would capsize the boat.

When I saw the dark outline of the leech of the mainsail waver for an instant, flap once or twice, and then suddenly collapse, I knew what was coming, and shouting at the top of my voice, "Look out Heck!