They pulled cautiously on, Tim standing up in the bows, and feeling ahead with the boat-hook. The mouth of the cavern seemed to grow smaller and smaller, until only a point of light remained. Suddenly Pat Casey, who was pulling with Jerry Bird, declared that he felt something seize the blade of his oar.
“It’s the shark, perhaps,” said Tom. “We have the muskets ready. I’ll give him a shot, and that will make him keep his distance. Wait until he tries it again.”
Tom took the musket, and stood up ready to fire.
“There! he’s got my oar in his jaws,” cried Pat.
Tom fired. The flash revealed for an instant the sides and roof of the cavern, which seemed to glitter as if studded with thousands of jewels, while ahead all was pitchy darkness, showing that they had not yet got to the extremity. The sound of the report, greatly increased in loudness, went echoing amid the arches and pillars, until it died away in the far distance, proving the great extent of the cavern.
Whether the shark was hit or not, it was impossible to say; but the bullet tore off the point of Pat’s oar, showing that Tom had taken good aim.
Jerry Bird now suggested to the midshipmen that it would be prudent to pull back, as without torches they could not see where they were going. There might be, for what they could tell to the contrary, some big sea monster squatting up at the further end, who might crunch them up without ceremony.
Though Tom had no apprehensions on that score, he agreed to return, proposing, should the Dragon remain at anchor another day, to explore the cave with a supply of torches. The boat was accordingly cautiously pulled round, and made her way towards the mouth. It was curious to watch the arch growing higher and higher, and the light gradually increasing. They had almost reached the entrance, when, on either side, not one, but several sharks, came gliding up. One, bolder and bigger than the rest, seized the blade of an oar, crunching off the end; and the other men had to keep a watchful eye to save theirs from being destroyed. Tom fired the other musket, and declared that the bullet went through the shark’s head. As the monster did not appear the worse for it, Desmond and Billy doubted the fact. Not until Tom had fired several times, and the boat had got to a considerable distance from the cavern, did the sharks leave her.
“There’s one thing certain: that’s not a place to bathe in, nor would it be pleasant to tumble overboard hereabouts,” observed Tom, gravely. “I never can see those black monsters, with their wicked eyes, floating near and looking up at one, without feeling uncomfortable.”
They had to row farther than they expected. At last they saw a narrow opening in a reef of rocks, within which they made out a small bay, with a sandy shore, where they could land with ease and draw up the boat. The country beyond, too, looked far more tempting than they had yet seen. The water in the passage was deep, so that they had no difficulty in making their way into the bay. As yet they had seen nothing of the second lieutenant’s and the master’s boats, which, supposing the island to be of small size, they had expected to meet coming round from the opposite side.