But in another minute they'll have big boats out in pursuit We must make for the land below the town, and get away somehow or other in the brush.

If we were to land in the town itself we'd be as badly off as ever.

Hark, there goes the alarm!" A heavy booming report rose above the mutter of the waters and the screaming of the wind.

One of the great guns on the castle of San Juan de Ulua had been fired.

After a brief interval it was followed by a second shot and then a third.