This state of affairs would have been satisfactory enough, but for a circumstance that, every moment, was making itself more apparent. At each move they were not only approaching nearer to their enemies, scattered along the strand, but as they receded from the line of the breakers, the water became comparatively tranquil, and its smooth surface, less confused by the masses of floating foam, was more likely to betray them to the spectators on the shore. To avoid this catastrophe, which would have been fatal, they moved shoreward only when it became absolutely necessary to do so, often permitting the tidal waves to sweep completely over the crown of their heads, and several time threaten suffocation. Under circumstances so trying, so apparently hopeless, most lads--ay, most men--would have submitted to despair, and surrendered themselves to a fate apparently unavoidable. But with that true British pluck, combining the tenacity of the Scotch terrier, the English bulldog, and the Irish stag-hound, the three youthful representatives of the triple kingdom determined to hold on. And they held on, with the waves washing against their cheeks, and at intervals quite over their heads, with the briny fluid rushing into their ears and up their nostrils, until one after another began to believe that there would be no alternative between surrendering to the cruel sea, or to the not less cruel sons of the Saara. As they were close together, they could hold council, conversing all the time in something louder than a whisper. There was no risk of their being overheard. Though scarce a cable's length from the shore, the hoarse soughing of the surf would have drowned the sound of their voices, even if uttered in a much louder tone; but being skilled in the acoustics of the ocean, they exchanged their thoughts with due caution: and while encouraging one another to remain firm, they speculated freely upon the chances of escaping from their perilous predicament. While thus occupied, a predicament of an equally perilous and still more singular kind, was in store for them. They had been hitherto advancing towards the water's edge, in regular progression with the influx of the tide, all the while upon their knees. This, as already stated, had enabled them to sustain themselves steadily, without showing anything more than three-quarters of the head above the surface.