“That will suit me,” said Pembury; “that is, if you are sure the bloodhounds won’t be straying about the grounds.”

“Lord bless you, no!” laughed Pratt. “D’you suppose the general lets his precious hounds stray about for any casual crook to feed with poisoned sausage? No, they’re locked up safe in the kennels at the back of the house. Hallo! This’ll be Swanley, I expect. I’ll change into a smoker here and leave you time to turn the matter over in your mind. So long. To-morrow evening in the avenue at a quarter to seven. And, I say, Mr. Pembury, you might as well bring the first instalment with you—fifty, in small notes or gold.”

“Very well,” said Mr. Pembury. He spoke coldly enough, but there was a flush on his cheeks and an angry light in his eyes, which, perhaps, the ex-warder noticed; for when he had stepped out and shut the door, he thrust his head in at the window and said threateningly—

“One more word, Mr. Pembury-Dobbs: no hanky-panky, you know. I’m an old hand and pretty fly, I am. So don’t you try any chickery-pokery on me. That’s all.” He withdrew his head and disappeared, leaving Pembury to his reflections.

The nature of those reflections, if some telepathist—transferring his attention for the moment from hidden court-yards or missing thimbles to more practical matters—could have conveyed them into the mind of Mr. Pratt, would have caused that quondam official some surprise and, perhaps, a little disquiet. For long experience of the criminal, as he appears when in durance, had produced some rather misleading ideas as to his behaviour when at large. In fact, the ex-warder had considerably under-estimated the ex-convict.

Rufus Pembury, to give his real name—for Dobbs was literally a nom de guerre—was a man of strong character and intelligence. So much so that, having tried the criminal career and found it not worth pursuing, he had definitely abandoned it. When the cattle-boat that picked him up off Portland Bill had landed him at an American port, he brought his entire ability and energy to bear on legitimate commercial pursuits, and with such success that, at the end of ten years, he was able to return to England with a moderate competence. Then he had taken a modest house near the little town of Baysford, where he had lived quietly on his savings for the last two years, holding aloof without much difficulty from the rather exclusive local society; and here he might have lived out the rest of his life in peace but for the unlucky chance that brought the man Pratt into the neighbourhood. With the arrival of Pratt his security was utterly destroyed.

There is something eminently unsatisfactory about a blackmailer. No arrangement with him has any permanent validity. No undertaking that he gives is binding. The thing which he has sold remains in his possession to sell over again. He pockets the price of emancipation, but retains the key of the fetters. In short, the blackmailer is a totally impossible person.

Such were the considerations that had passed through the mind of Rufus Pembury, even while Pratt was making his proposals; and those proposals he had never for an instant entertained. The ex-warder’s advice to him to “turn the matter over in his mind” was unnecessary. For his mind was already made up. His decision was arrived at in the very moment when Pratt had disclosed his identity. The conclusion was self-evident. Before Pratt appeared he was living in peace and security. While Pratt remained, his liberty was precarious from moment to moment. If Pratt should disappear, his peace and security would return. Therefore Pratt must be eliminated.

It was a logical consequence.

The profound meditations, therefore, in which Pembury remained immersed for the remainder of the journey, had nothing whatever to do with the quarterly allowance; they were concerned exclusively with the elimination of ex-warder Pratt.