"I expect he can," said Marchmont; "at any rate, he knows more about them than I do; so I will be off. If you should happen to think of any way," he continued, with a sly smile, "of upsetting that will, just let me know, and I will lose no time in entering a caveat. Good-bye! Don't trouble to let me out."

As soon as he was gone, Thorndyke turned to Stephen Blackmore.

"I am going," he said, "to ask you a few questions which may appear rather trifling, but you must remember that my methods of inquiry concern themselves with persons and things rather than with documents. For instance, I have not gathered very completely what sort of person your uncle Jeffrey was. Could you tell me a little more about him?"

"What shall I tell you?" Stephen asked with a slightly embarrassed air.

"Well, begin with his personal appearance."

"That is rather difficult to describe," said Stephen. "He was a medium-sized man and about five feet seven—fair, slightly grey, clean-shaved, rather spare and slight, had grey eyes, wore spectacles and stooped a little as he walked. He was quiet and gentle in manner, rather yielding and irresolute in character, and his health was not at all robust though he had no infirmity or disease excepting his bad eyesight. His age was about fifty-five."

"How came he to be a civil-service pensioner at fifty-five?" asked Thorndyke.

"Oh, that was through an accident. He had a nasty fall from a horse, and, being a rather nervous man, the shock was very severe. For some time after he was a complete wreck. But the failure of his eyesight was the actual cause of his retirement. It seems that the fall damaged his eyes in some way; in fact he practically lost the sight of one—the right—from that moment; and, as that had been his good eye, the accident left his vision very much impaired. So that he was at first given sick leave and then allowed to retire on a pension."

Thorndyke noted these particulars and then said:

"Your uncle has been more than once referred to as a man of studious habits. Does that mean that he pursued any particular branch of learning?"