He took the ghastly object, and fixed it upon a knob, one of those upon the back of the old-fashioned chair in the middle of the room, draped it round with the table-cover; and drew back to admire his handiwork.

“Oh, if our ’Lisbeth would come in now!” he said, with a chuckle, as he rubbed his hands down his sides before proceeding to the greatest bit of enjoyment he had in his lonely life at the doctor’s.

From the very first the doctor’s surgery and consulting-room had had a strange fascination for him, and whenever he was missing, the maid-of-all-work, who rarely showed her face out of the dim kitchen, knew that the boy would not be playing truant from his work or playing with other lads of his age, but would be found reading, dusting, or amusing himself in the surgery, smelling bottles, opening drawers, or standing on a chair, gazing at the ghastly preparations in one or other of the row of glass jars.

His pranks he managed to keep secret, arranging to enjoy them when the doctor was asleep, and he was not likely to be disturbed.

The present was his favourite feat from its reality. There was something to go at, he always said, and for the hundredth time, perhaps, after performing the operation, and restoring with the help of a little gum, he took up the doctor’s tooth-key, fixed it carefully round a perfectly sound molar in the fine specimen upon whose excellences the doctor had before now lectured to students, and steadying the skull, the boy pretended to engage in a terrible struggle; then gave a quick twitch, and brought out the tooth, which he held with a smile as he struck an attitude before its silent owner.

The boy had seemed goblin-like before, but as he now stood there before the glistening relic of mortality, over which he had partly thrown the corner of the table-cloth, the scene was weird and grim in the extreme; for the one uncovered eye-socket seemed to leer at him in company with a ghastly pride, as if rejoicing at the relief the operation had afforded.

“Now yer better, ain’t yer?” said Bob. “Eh? Ah, I thought you would be. He was a tight ’un. Some ’un coming.”

Quick as thought, the boy snatched the skull from the back of the chair, slipped it into the long chest, closed the lid, thrust the tooth-key back into the drawer, and had thrown the cover on the table before the door at the end of the house-passage was opened, disclosing him, in spite of all his efforts, looking as if the mischief which lurked in the corners of his mouth, and flashed from his eyes, had been running to the full extent of its chain.