A stone's throw from Centre street stands a tall tenement-house, sheltering anywhere from forty to fifty families in squalid wretchedness. The rent which each family pays would procure a neat house in a country town, with perhaps a little land beside; but the city has a mysterious fascination for the poorer classes, and year after year many who might make the change herd together in contracted and noisome quarters, when they might have their share of light and space in country neighborhoods.

It was in front of this tenement-house that Dick halted, and plunged into a dark entrance, admonishing Frank to follow. Up creaking and dilapidated staircases to the fourth floor the boys went.

"Here we are," said Dick, panting a little from the rapidity of his ascent, and began a vigorous tattoo on a door to the left.

"Is this where the blind gentleman lives?" asked Frank, looking around him dubiously.

"He isn't much of a gentleman to look at," said Dick, laughing. "Do you hear him?"

Frank heard a hoarse growl from the inside, which might have been "Come in." At any rate, Dick chose so to interpret it, and opened the door.

The boys found themselves in a scantily furnished room, with a close, disagreeable smell pervading the atmosphere. In the corner was a low bedstead, on which lay a tall man, with a long, gray beard, and a disagreeable, almost repulsive, countenance. He turned his eyes, which, contrary to Frank's expectations, were wide open, full upon his visitors.

"What do you want?" he asked querulously. "I was asleep, and you have waked me up."

"Sorry to disturb you, Mr. Mills," said Dick; "but I come on business."

"What business can you have with me?" demanded the blind man. "Who are you?"