Another half hour and it had settled in some sort of regularity, and was sweeping before the wind in deep trough-like waves with steep sides, resembling those to which Jack had been accustomed in Sea Reach, on a gigantic scale. Soon again these were broken up, and were succeeded by a wild tumultuous sea like a boiling cauldron. The vessel was thrown violently from side to side, taking water over, now on one beam now on the other, and at times shaking from blows as if she had struck upon a rock. So sharp and sudden were her movements that the lads could not keep their feet, and again made their way into the cabin. Even here it was necessary to shout in order to be heard.