Then, after ascertaining the undisturbed solitude of the plain beyond the wood, Arthur and Wilkins set out in hopes of procuring a change of food; but no kangaroos or emus were in sight, and they feared to venture far from their place of refuge. They shot some opossums, filled one bag with the leaves of the tea-shrub, at the particular request of Jenny, and another with the leaves of a salt plant, which seemed to have sprung up after the rain, and which Arthur was glad to carry off, that he might try an experiment of which he had read.

"But, I say, Mr. Arthur," said Wilkins, "we've gone and made a bad job of it; just look ye here, we've niver thought that we were leaving a track, and here it is on this plashy bog, and no mistake. We might just as well have hung out a sign-post, to ask blacky to walk in."

Arthur was much vexed at his own carelessness, but he saw nothing could now be done but to endeavor to confuse the track as much as possible, and he arranged with Wilkins that they should separate, branch off in different directions, and finally they made a circuit opposite to each other round the wood, that the weak point might not be discovered.

"Ye see, Mr. Arthur," said Wilkins before they separated, "if Peter has an inkling that we're aback of these trees, he'd soon cut his way through, with a bit of help. But then, them fools of black fellows are as bad as our fond lass Ruth; they're flayed out of their wits of this wood, and they'll be shy of coming nigh hand it. I ken a good bit of their talk, ye see, but I'se a bad hand at framing their queer chirruping words. I heard 'em tell of bad sperrits as haunted this wood. But Black Peter's set on getting haud of t' master's money, and guns, and powder, and such like, and he's not good to put down. I seed Master Hugh's rifle as soon as they pulled me into that hole, and kept an eye on't. It were no use to them, for they'd no powder; and I said to myself, if God please to loose me, that gun goes wi' me."

They then parted to move round the dark forest, and during his walk, Arthur was alarmed to see smoke from the wood in which the cave of the savages lay; and before he reached the opening, he heard their curious and unwelcome cry, which proclaimed that the foe was near, and he feared, watching their movements, and now deeply regretted that they had left their retreat. Gladly they returned to it, and doubly secured the entrance, determining to keep an incessant watch, lest they should be surprised in their citadel.

On their return they found that Jack, assisted by Hugh and Gerald, had formed an oven, lined with slabs, on the hearth where the cooking-fire was usually made, and Jenny was preparing cakes of bruised oats, and a pigeon-pie made in a large oyster-shell, and covered with potatoes, to be baked in the new oven. The flesh of the opossum was not relished by any of the party. Jenny declared she would just as soon eat a monkey; Ruth was afraid to touch one, even before it was cooked; and Mr. Mayburn, after a long lecture to prove that the flesh must certainly be wholesome, from the habits and the vegetable diet of the class of animals to which it belonged, concluded by declining, himself, to eat of it.

"Nevertheless," he said, "I am not prejudiced by the vulgar error of confounding this little creature with the ugly opossum of America, to which it bears no resemblance, except in its marsupial formation and its playful habits. In fact, the graceful form, delicate color, and extraordinary agility of this beautiful animal, seem to rank it rather with the squirrels; and from the lateral folds of membrane, which it has the power to expand, in order to support its flying leaps through the air, it has been named by some travellers the 'flying squirrel,' though distinct from the American squirrel, and, like all the quadrupeds of the country, exclusively Australian."

The pretty delicate gray skins were carefully preserved, to be sewed together for cloaks; and the hungry boys did not disdain a stew of opossums, which they declared was quite as good as rabbit. But previous to the cookery, Arthur showed his father the new salt-shrub; and the large and peculiar form of the leaves enabled them to decide that it must be Brown's Rhagodia Parabolica, the leaves of which are edible. Anxious to make the experiment, the leaves were boiled for some time, strained, and the liquor filtered and evaporated several times, and at length the exposure to great heat produced some crystals of salt, to the delight of the young chemists, and still more to the content of Jenny, who treasured the precious salt, which had so long been the grand deficiency in her cookery. The leaves themselves were added to the stew, and not only communicating a salt flavor to the insipid meat, but formed a tender vegetable, tasting like spinach; and it was determined to omit no opportunity of searching for this valuable plant.

In the preparation and enjoyment of their abundant food, they did not neglect the necessary precautions for concealing their retreat. All the potato stalks were thrown into the cave, for fuel, and the ground was smoothed over as much as possible, and strewn with stones, that the traces of cultivation might haply escape observation; a watch was continually kept on the heights, and every opening that lighted the cave, with the exception of some narrow crevices, was carefully covered with a slab of stone beneath the brush, lest an accident similar to that which befell O'Brien should lead their enemies to discover the subterranean hollow.

This precaution rendered their abode gloomy, though they left the principal opening—the entrance—uncovered till any serious cause of alarm should render it prudent to enclose themselves entirely; and when a cessation of the rain permitted them, they all gladly remained in the open air, enjoying the perfume of the revived vegetation, and the joyful notes of thousands of birds which sported in the air, fluttered on the trees, or clamored noisily round the pools of water, plunging their beaks into the mud for the worms and reptiles on which they fed. These creatures supplied the family with unfailing food, and afforded Mr. Mayburn constant amusement in studying their various habits.