The ring-barking of trees admits sunlight and air to the earth, and this means rich "feed" and a sturdy undergrowth. On the other hand, the death of the trees introduces a kind of nakedness and publicity to the bush which naturally is not favoured by wild folk during daylight. But this does not detract from the merits of ring-barked country as a night feeding-ground; and Finn was amazed by the wealth and variety of wild life which he saw as he loped swiftly through the few miles of bush lying between the circus camp and the foothills of the mountains beyond. His immediate purpose, of putting a considerable distance between himself and the place of his captivity, was too urgent to admit of delays, no matter what the temptation; and, accordingly, Finn made no pauses. But it added greatly to the joy of his escape to find himself surrounded by so great an abundance of creatures which instinct made him regard as game for him. Upon every hand there were rustlings and whisperings, tiny footfalls and scufflings among dead leaves and twigs; and here and there, as the great grey, shadowy Wolfhound swept along between the white tree-trunks, he had glimpses of rabbits, bandicoots, kangaroo-rats, and many of the lesser marsupials, all busy about their different night affairs, all half-paralysed by amazement at his passage through their midst. Once he heard a venomous spitting overhead and, as he hurried on, caught a flying glimpse of a native cat, who had pinned an adventurous young 'possum on the lower limb of a giant black-butt. Once, too, he was startled into momentary horror of some human trap of the Professor's invention; and his speed approached that of flying, under the spur of a laughing jackass's raucous cachinnation. The ring-barked country was soon left behind, and then Finn found himself among dense living bush, climbing a steep ascent. Here his speed was necessarily a great deal slower. There was a good deal of undergrowth upon the mountain side, besides much heavy timber; and hidden among this lush undergrowth were occasional boulders and innumerable fallen tree-trunks, over which Finn stumbled heavily again and again, he being without that curious bush-lore which enables men-folk born in the bush, no less than its own wild folk, to steer clear of these obstructions by means of a sort of sixth sense, which tells them when they must leap, and helps them to know when the leap must be an extra cautious one, because of the danger of disturbing the deadly people of the wild. The Australian bush has many varieties of snakes, and quite a good number of them are deadly; though some of those most formidable in appearance are not. Finn had never even seen a snake; so that, though his ignorance made him run many risks that night, he was at least spared all anxiety regarding the deadly folk, their quick tempers and swift methods of attack.