“Do you take any interest in gardening?” he asked. Next to diamonds and weekly “property,” his besetting weakness was fuchsias.

Brodski chuckled sourly. “Hatton Garden is the nearest approach——” He broke off suddenly, and then added, “I am a Londoner, you know.”

The abrupt break in the sentence was not unnoticed by Silas, nor had he any difficulty in interpreting it. A man who carries untold wealth upon his person must needs be wary in his speech.

“Yes,” he answered absently, “it’s hardly a Londoner’s hobby.” And then, half consciously, he began a rapid calculation. Put it at five thousand pounds. What would that represent in weekly property? His last set of houses had cost two hundred and fifty pounds apiece, and he had let them at ten shillings and sixpence a week. At that rate, five thousand pounds represented twenty houses at ten and sixpence a week—say ten pounds a week—one pound eight shillings a day—five hundred and twenty pounds a year—for life. It was a competency. Added to what he already had, it was wealth. With that income he could fling the tools of his trade into the river and live out the remainder of his life in comfort and security.

He glanced furtively at his guest across the table, and then looked away quickly as he felt stirring within him an impulse the nature of which he could not mistake. This must be put an end to. Crimes against the person he had always looked upon as sheer insanity. There was, it is true, that little affair of the Weybridge policeman, but that was unforeseen and unavoidable, and it was the constable’s doing after all. And there was the old housekeeper at Epsom, too, but, of course, if the old idiot would shriek in that insane fashion—well, it was an accident, very regrettable, to be sure, and no one could be more sorry for the mishap than himself. But deliberate homicide!—robbery from the person! It was the act of a stark lunatic.

Of course, if he had happened to be that sort of person, here was the opportunity of a lifetime. The immense booty, the empty house, the solitary neighbourhood, away from the main road and from other habitations; the time, the darkness—but, of course, there was the body to be thought of; that was always the difficulty. What to do with the body—— Here he caught the shriek of the up express, rounding the curve in the line that ran past the waste land at the back of the house. The sound started a new train of thought, and, as he followed it out, his eyes fixed themselves on the unconscious and taciturn Brodski, as he sat thoughtfully sipping his whisky. At length, averting his gaze with an effort, he rose suddenly from his chair and turned to look at the clock on the mantelpiece, spreading out his hands before the dying fire. A tumult of strange sensations warned him to leave the house. He shivered slightly, though he was rather hot than chilly, and, turning his head, looked at the door.

“Seems to be a confounded draught,” he said, with another slight shiver; “did I shut the door properly, I wonder?” He strode across the room and, opening the door wide, looked out into the dark garden. A desire, sudden and urgent, had come over him to get out into the open air, to be on the road and have done with this madness that was knocking at the door of his brain.

“I wonder if it is worth while to start yet,” he said, with a yearning glance at the murky, starless sky.

Brodski roused himself and looked round. “Is your clock right?” he asked.

Silas reluctantly admitted that it was.