It was a modest building, not very straight, not large, not tall; not bold-faced, with great staring windows, but a shy, blinking house, with a conical roof going up into a peak over its garret window of four small panes of glass, like a cocked hat on the head of an elderly gentleman with one eye.

It was not built of brick or lofty stone, but of wood and plaster; it was not planned with a dull and wearisome regard to regularity, for no one window matched the other, or seemed to have the slightest reference to anything besides itself.
The shop--for it had a shop--was, with reference to the first floor, where shops usually are; and there all resemblance between it and any other shop stopped short and ceased.

People who went in and out didn't go up a flight of steps to it, or walk easily in upon a level with the street, but dived down three steep stairs, as into a cellar.

Its floor was paved with stone and brick, as that of any other cellar might be; and in lieu of window framed and glazed it had a great black wooden flap or shutter, nearly breast high from the ground, which turned back in the day-time, admitting as much cold air as light, and very often more.
Behind this shop was a wainscoted parlour, looking first into a paved yard, and beyond that again into a little terrace garden, raised some feet above it.

Any stranger would have supposed that this wainscoted parlour, saving for the door of communication by which he had entered, was cut off and detached from all the world; and indeed most strangers on their first entrance were observed to grow extremely thoughtful, as weighing and pondering in their minds whether the upper rooms were only approachable by ladders from without; never suspecting that two of the most unassuming and unlikely doors in existence, which the most ingenious mechanician on earth must of necessity have supposed to be the doors of closets, opened out of this room--each without the smallest preparation, or so much as a quarter of an inch of passage--upon two dark winding flights of stairs, the one upward, the other downward, which were the sole means of communication between that chamber and the other portions of the house.
With all these oddities, there was not a neater, more scrupulously tidy, or more punctiliously ordered house, in Clerkenwell, in London, in all England.