But alas, when I came to the top of a rise, from which I expected to see my dear parents, or at any rate our cinder-heap, there was nothing of the kind in sight. The breeze had swept me up the Barnet road; and yonder was the smoke of our chimney, like a streak, a mile away down to the left of me. All the foot of the hill, which is now panelled out into walls, and streets, of the great cattle-market, remained to be crossed, without help of the wind, ere ever I was safe inside our door. And the worst of it was, that the ground had no cover,--not a house, nor a tree, nor so much as a ditch, for a smallish boy to creep along; only piles of rubbish, here and there, and a few swampy places, where snipes sometimes pitched down, to have a taste of London. Tired as I was, after that great run, and scant of breath, and faint-hearted--for the sun was gone down below Highgate Hill, and my spirits ever seem to sink with him--I started anew for my own sweet home, by the mark of the smoke of our boiling-house. I could hear my heart going pit-a-pat, faster than my weary feet went; for the place was as lonely as science could desire, for a snug job of vivisection. Of that grisly horror I knew not as yet the name, nor the meaning precisely; but a boy at our school, who was a surgeon's son, used to tell things, in bed, there was no sleeping after. And once he had said, "If they could catch you, Tommy, what a treat you would be, to be lectured on!" As the dusk grew deeper in the hollow places, and the ribs of the naked hills paler, I began to get more and more afraid, and to start back, and listen at my own footstep. And before I could hear what I hoped to hear--the anvil of the blacksmith down our lane--the air began to thicken with the reeking of the earth, and the outline of everything in sight was blurred, and a very tired fellow could not tell, at any moment, what to run away from, without running into worse. At one time, I thought of sitting down, and hiding in a dip of the ground, till night came on, and my enemies could not see me; but although that might have been the safest plan, my courage would not hold out for it. So on I went, in fear and trembling, peeping, and peering, both behind me and before, and longing with all my heart to see our own door. But instead of that, oh, what a sight I saw--the most fearful that can be imagined! From the womb of the earth, those four professors (whose names are known all over it), Brachipod, Jargoon, Chocolous, and Mullicles, came forth, and joined hands in front of me. They laughed, with a low scientific laugh, like a surgical blade on the grindstone. "Capital, capital!" Brachipod cried; "we have got him all snug to ourselves, at last. Let me get my hook into my pretty little eel." "Famous, famous!" said the deep voice of Jargoon; "now you shall see, how I work my compressor." "Hoch, hoch!" chuckled Chocolous; "ve have catch ze leetle baird at last. I vill demonstrate his bacilli."