"The other matter," said he at length, handing the dagger back to the inspector, "refers to the houses opposite."

He walked to the window, and looked out at the backs of a row of tall buildings similar to the one we were in. They were about thirty yards distant, and were separated from us by a piece of ground, planted with shrubs and intersected by gravel paths.

"If any of those rooms were occupied last night," continued Thorndyke, "we might obtain an actual eyewitness of the crime. This room was brilliantly lighted, and all the blinds were up, so that an observer at any of those windows could see right into the room, and very distinctly, too. It might be worth inquiring into."

"Yes, that's true," said the inspector; "though I expect, if any of them have seen anything, they will come forward quick enough when they read the report in the papers. But I must be off now, and I shall have to lock you out of the rooms."

As we went down the stairs, Mr. Marchmont announced his intention of calling on us in the evening, "unless," he added, "you want any information from me now."

"I do," said Thorndyke. "I want to know who is interested in this man's death."

"That," replied Marchmont, "is rather a queer story. Let us take a turn in that garden that we saw from the window. We shall be quite private there."

He beckoned to Mr. Curtis, and, when the inspector had departed with the police-surgeon, we induced the porter to let us into the garden.

"The question that you asked," Mr. Marchmont began, looking up curiously at the tall houses opposite, "is very simply answered. The only person immediately interested in the death of Alfred Hartridge is his executor and sole legatee, a man named Leonard Wolfe. He is no relation of the deceased, merely a friend, but he inherits the entire estate—about twenty thousand pounds. The circumstances are these: Alfred Hartridge was the elder of two brothers, of whom the younger, Charles, died before his father, leaving a widow and three children. Fifteen years ago the father died, leaving the whole of his property to Alfred, with the understanding that he should support his brother's family and make the children his heirs."

"Was there no will?" asked Thorndyke.