"Oh!" he cried at last, "if people only knew what they would see if they travelled they would never care to stay at home."
"Yes," said Sir John dryly, "if they only knew."
They reached the beautiful glen at last, where the two springs--hot and cold--sent their waters into the shadowed pool, Jack being now forward with Edward, who, as an excuse for being well to the front in anything fresh which might arise, made a point of keeping close behind his young master with the glass, which he handed to him from time to time.
Now it was to sweep the sea beyond the glittering, misty edge of the reef, where a rainbow showed brilliantly from time to time; now to look up through a deep gash at the summit of the great volcano, which curved upward till its crater was lost in a cloud of vapour. Every now and then too a flock of birds had to be watched in some huge tree a little way back from the sands.
And still the yacht glided on in perfect safety hour after hour, with the reef nearer or more distant, but always affording an ample space of deep pellucid water full of the wonders of the tropics, and calling for a brief inspection.
"Here, look, sir," cried Ned suddenly, as they were passing a lovely park-like stretch which ran high up amongst the dense forest growth.
"Catch hold, sir. It's just your focus."
"Pigs," said Jack contemptuously, "half-a-dozen."
"I never saw pigs like them, sir. Why, hark at 'em. They're barking."
"Well, pigs make a short, sharp, barking noise sometimes," said the doctor, whose attention had been taken by the man's words. "No, they're not pigs, Jack," he said, as he brought his glass to bear well upon the little cluster of animals running here and there among the trees, and ending by darting down upon the sands to stare at the yacht. "Dogs, by all that's wonderful. Here, Meadows, Bradleigh, what do you make of these?"
"Mongrel wild dogs," said the captain, after a glance; "descendants of some that have been left by a passing ship."
"Why, we may find cows, sheep, and goats yet," said the doctor.
"Very likely goats," replied the captain, "but I doubt whether we shall find the others."
Every mile they passed spread fresh beauties before them, the rugged nature of the mountain scenery precluding all sameness; and early in the afternoon, when, by the captain's calculation, they had arrived nearly at the opposite point to where they had lain at anchor, Jack had come to the conclusion that they need go no farther on their voyage, for they had hit upon the loveliest place in the world, where they ought to stay for good.
He said something of the kind to Sir John.
"And what about studies, books, and the realities of civilised life?"
said his father.
"I feel now as if I don't care for them a bit," replied the lad dreamily. "I should like to stop here and do nothing."
"Do you mean that?"
"Well, not exactly nothing," replied the lad, "for I should want to shoot and fish and collect all the birds, insects, flowers, and shells."
"In other words, lead a very active life, my boy. But you would weary of it in time and want a change. Better do as we are doing now, visit an island like this and return home."
"Yes, that is perhaps the best, father; and of course there are the troubles here--the dangerous reptiles and poisonous insects."
"And the blacks," said the doctor, who had been leaning over the rail with his glass to his eyes, but had heard every word.
"Yes," said Jack with a shudder, "there are the blacks."
"I should like to know whether they are cannibals," continued the doctor. "The worst of it is, if we killed one we should be no wiser.
You see, you couldn't tell whether he was carnivorous or herbivorous by his teeth.--Well, captain, no signs of any inhabitants."
"Not a bit; and we're quite half-way round. No signs either of another opening in the reef. Fine island to annex, Sir John. It's a regular fortification, a natural stronghold with an impregnable wall round it, and a full mile-wide moat inside. A fort at the point commanding the entrance would be sufficient."
"But we do not want it," said Sir John.
"No, sir, it's on the road to nowhere."
The captain went aloft, glass in hand, to have a good look ahead, and descended pretty well convinced that there would be nothing to hinder their progress round the island, the water of the lagoon being very calm, and deeper than on the other side of the island.
The gentlemen lunched and the men dined, and the afternoon was spent in gazing at the wonders of sea and shore. Shoals of silvery and golden fish, startled by the vessel, leaped out of the water and darted in all directions; a shark showed its back fin now and then, and twice over droves of pigs started up out of the hot sand to make for cover. But still there was no sign of inhabitant or opening in the reef, while scores of tempting places were passed, all inviting to a naturalist, and above all to Jack; vistas among the trees took his attention, and valleys rising upward toward the higher parts of the mountain.
Upon one of these occasions, when he was sitting back in a deck-chair, sweeping the side of the mountain with his glass, the doctor came up behind him.
"Looking at the mountain?" he said.
"Yes; couldn't we get up there?"
"I vote we try," said the doctor. "Will you come?"
"Yes," cried Jack eagerly; "but we couldn't land and start now."
"Hardly," said the doctor, laughing. "We should have to start at daybreak."
"What, to get up a little way like that?"
"Yes, to get up that little way," said the doctor, with a queer twinkle of the eye. "Well, we don't seem to see anything likely to hinder our landing to-morrow and having a good time at collecting. We must soon get round to our starting-place. Let's ask the captain how far we have come."
"Roughly speaking, nearly fifty knots," said the captain. "It's getting well on toward six bells now, and we've been coming at a fair speed, and are going a bit faster. I want to reach the anchorage before dark."
At one time this seemed to be doubtful, but just as the captain announced his intention of dropping anchor for the night, Mr Bartlett hailed him from above.
"I can just see the opening in the reef over that low strip of sand."
"How far off?"
"About a mile," was the reply; and the speed being increased, they picked up the buoy they had left in the morning just as it was beginning to grow dark, having completely circumnavigated the island.
"I say, Mr Bartlett," cried Jack suddenly, as the mate approached him, and he pointed toward the shore. "Wasn't it just there that we killed the sharks?"
"Yes; just there. Can you see any back fins?"
"No; but where's the wrecked canoe?"
The mate clapped his glass to his eye, and swept the shore for some minutes.
"Could it have been carried out to sea?" said Jack excitedly.
"No; hardly possible."
"Then has it sunk?"
"No; it could not sink."