"These cannot be salt crystals," said I; "the water which flows over them leaves no track, and tastes quite sweet. I am rather inclined to believe that we have penetrated into a cave of rock crystal!"

"Oh, how splendid! Then we have discovered a great treasure!"

"Certainly, if we could make any use of it; otherwise, in our situation, it is about as valuable as the lump of gold found by good old Robinson Crusoe."

"Anyhow, I will break off a piece for a specimen. See, here is a fine bit, only rather dull, and not transparent; what a pity! I must knock off another."

"You must go more carefully to work, or it will look as dull as the first. You destroyed its true form, which is that of a pyramid, with six sides or faces."

We remained some time in this interesting grotto, but our light burnt low after we had examined it in different directions; and Fritz having secured a large lump, which exhibited several crystals in perfection, we quitted the place, Fritz discharging a farewell shot for the sake of hearing the grand echoes.

On reaching the open air we saw poor Jack sobbing bitterly, but as soon as we appeared he ran joyfully toward us, and threw himself into my arms.

"My child, what is the matter?" I cried anxiously.

"Oh, I thought you were lost! I heard a noise twice, as if the rocks had shattered down; and I thought you and Fritz were crushed in the ruins!

It was horrible! How glad I am to see you!"

I comforted the child, and explained the noises he had heard, inquiring why he was alone?

"Ernest is over there among the reeds: I daresay he did not hear the shots."

I found Ernest busily engaged in weaving a basket in which to catch fish; he had devised it ingeniously, with a funnel-shaped entrance; through which the fish pa.s.sing would not easily find their way out, but would remain swimming about in the wide part of the apparatus.

"I shot a young serpent while you were away, father," said he. "It lies there covered with rushes; it is nearly four feet long, and as thick as my arm."

"A serpent!" cried I, hurrying toward it in alarm, and fearing there must be a brood of them in the swamp after all.

"A fine large eel, you mean, my boy. This will provide an excellent supper for us to-night. I am glad you had the courage to kill it, instead of taking to your heels and fleeing from the supposed serpent."

"Well, I thought it would be so horrid to be pursued and caught that I preferred facing it; my shot took effect, but it was very difficult to kill the creature outright, it moved about although its head was smashed."

"The tenacity of life possessed by eels is very remarkable," I said. "I have heard that the best mode of killing them is to grasp them by the neck and slap their tails smartly against a stone or post."

We made our way back more easily by keeping close to the cliffs, where the ground was firmer, and found the mother washing clothes at the fountain. She rejoiced greatly at our safe return, and was much pleased with the supply of fuller's earth, as she said there was now very little soap left. The eel was cooked for supper, and during the evening a full account was given of our pa.s.sage through the swamp, and discovery of the rock-crystal cavern.

It was most important to ascertain whether any serpent lurked among the woods of our little territory between the cliffs and the sea.

Preparations were set on foot for the second and greater undertaking of a search throughout the country beyond the river, as far as the Gap. I wished all the family to go on the expedition, a decision which gave universal satisfaction.

Intending to be engaged in this search for several weeks, we took the small tent and a store of all sorts of necessary provisions, as well as firearms, tools, cooking utensils, and torches.

All these things were packed on the cart, which was drawn by Storm and Grumble. Jack and Franz mounted them, and acted at once the part of riders and drivers. My wife sat comfortably in the cart, Fritz rode in advance, while Ernest and I walked; we were protected in flank by the dogs and Fangs, the tame jackal.

Directing our course toward Woodlands, we saw many traces of the serpent's approach to Rockburg. In some places, where the soil was loose, the trail, like a broad furrow, was very evident indeed.

At Falconhurst we made a halt, and were, as usual, welcomed by the poultry, as well as by the sheep and goats.

We then pa.s.sed on to Woodlands, where we arrived at nightfall. All was peaceful and in good order; no track of the boa in that direction; no signs of visits from mischievous apes; the little farm and its inhabitants looked most flourishing.

Next day was pa.s.sed in making a survey of the immediate neighborhood, at the same time collecting a quant.i.ty of cotton, which was wanted for new pillows and cushions. In the afternoon Franz was my companion, carrying a small gun entrusted to him for the first time.

We took Fan and Bruno with us, and went slowly along the left bank of the lake, winding our way among reedy thickets, which frequently turned us aside a considerable distance from the water. The dogs hunted about in all directions, and raised duck, snipe, and heron. These usually flew directly across the lake so that Franz got no chance of a shot. He began to get rather impatient, and proposed firing at the black swans we saw sailing gracefully on the gla.s.sy surface of the lake.

Just then a harsh booming sound struck our ears. I paused in wonder as to whence the noise proceeded, while Franz exclaimed, "Oh, father, can that be Swift, our young onager?"

"It cannot possibly be Swift," said I; adding, after listening attentively a minute or two, "I am inclined to think it must be the cry of a bittern, a fine handsome bird of the nature of a heron."

"Oh! may I shoot it, father? But I wonder how a bird can make that roaring noise! One would think it was an ox, it is more like lowing than braying."

"The noise creatures make depends more on the construction of the windpipe, its relation to the lungs and the strength of the muscles which force out the breath, than on their size. As, for example, how loud is the song of the nightingale and the little canary bird. Some people say the bittern booms with his long bill partly thrust into the boggy ground, which increases the hollow m.u.f.fled sound of its very peculiar cry."

Franz was very anxious that the first trophy of his gun should be so rare a bird as the bittern; the dogs were sent into the wood, and we waited some distance apart, in readiness to fire.

All at once there was a great rustling in the thicket, Franz fired, and I heard his happy voice calling out:

"I've hit him! I've hit him!"

"What have you hit?" shouted I in return.

"A wild pig," said he; "but bigger than Fritz's."

"Aha! I see you remember the agouti! Perhaps it is not a hog at all but one of our little pigs from the farm. What will the old sow say to you, Franz?"

I soon joined my boy, and found him in transports of joy over an animal certainly very much like a pig, although its snout was broad and blunt.

It was covered with bristles, had no tail, and in color was a yellowish gray.

Examining it carefully, and noticing its webb feet and its curious teeth, I decided that it must be a capybara, a water-loving animal of South America, and Franz was overjoyed to find that he had shot "a new creature," as he said. It was difficult to carry it home, but he very sensibly proposed that we should open and clean the carcase, which would make it lighter--and then putting it in a game bag, he carried it till quite tired out; he then asked if I thought Bruno would let him strap it on his back. We found the dog willing to bear the burden, and reached Woodlands soon afterward.

There we were surprised to see Ernest surrounded by a number of large rats which lay dead on the ground.

"Where can all these have come from?" exclaimed I. "Have you and your mother been rat-hunting instead of gathering rice as you intended?"

"We came upon these creatures quite unexpectedly," he replied, "while in the rice swamp. Knips, who was with us, sprang away to a kind of long-shaped mound among the reeds, and pounced upon something, which tried to escape into a hole. He chattered and gnashed his teeth, and the creature hissed and squeaked, and running up I found he had got a big rat by the tail; he would not let go, and the rat could not turn in the narrow entrance to bite him, but I soon pulled it out and killed it with my stick.

"The mound was a curious looking erection, so I broke it open with some difficulty, and in doing this dislodged quite a dozen of the creatures.

Some I killed, but many plunged into the water and escaped.

"On examining their dwelling I found it a vaulted tunnel made of clay and mud, and thickly lined with sedges, rushes, and water-lily leaves.

"There were other mounds or lodges close by, and seeking an entrance to one I stretched my game bag across it, and then hammered on the roof till a whole lot of rats sprang out, several right into the bag. I hit away right and left, but began to repent of my audacity when I found the whole community swarming about in the wildest excitement, some escaping, but many stopping in bewilderment, while others actually attacked me.

"It was anything but pleasant, I a.s.sure you, and I began to think of Bishop Hatto in the Mouse Tower on the Rhine. Knips liked it as little as I did, and skipped about desperately to get out of their way, though he now and then seized a rat by the neck in his teeth.

"Just as I began to shout for help, Juno came dashing through the reeds and water, and made quick work with the enemy, all flying from her attack.

"My mother had great difficulty in forcing her way through the marsh to the scene of action, but reached me at last; and we collected all the slain to show you, and for the sake of their skins."

This account excited my curiosity, and I went to examine the place Ernest described: where I found, to my surprise, an arrangement much like a beaver dam, though on a small scale, and less complete.