object of their amusement turned sharply as they came abreast of him. His freckled, clean-shaven face looked strangely old, and the big, gold-rimmed spectacles bridged halfway down his nose added to his ludicrous appearance. He raised his eyebrows and surveyed the two young people.
"There's an accident over there," he said briefly and without any preliminary.
"Indeed," said the young man politely.
"There have been several accidents in Gray Square," said the strange old man meditatively. "There was one in 1875, when the corner house—you can see the end of it from here—collapsed and buried fourteen people, seven of whom were killed, four of whom were injured for life, and three of whom escaped with minor injuries."
He said this calmly and apparently without any sense that he was acting at all unconventionally in volunteering the information, and went on:
"There was another accident in 1881, on the seventeenth of October, a collision between two hansom cabs which resulted in the death of a driver whose name was Samuel Green. He lived at 14 Portington Mews, and had a wife and nine children."
The girl looked at the old man with a little apprehension, and Frank Merrill laughed.
"You have a very good memory for this kind of thing. Do you live here?" he asked.
"Oh, no!" The little man shook his head vigorously.
He was silent for a moment, and then:
"I think we had better go over and see what it is all about," he said with a certain gravity.
His assumption of leadership was a little staggering, and Frank turned to the girl.
"Do you mind?" he asked.
She shook her head, and the three passed over the road to the little group just as the ambulance came jangling into the square. To Merrill's surprise, the policeman greeted the little man respectfully, touching his helmet.
"I'm afraid nothing can be done, sir. He is—gone."
"Oh, yes, he's gone!" said the other quite calmly.
He stooped down, turned back the man's coat, and slipped his hand into the inside pocket, but drew blank; the pocket was empty. With an extraordinary rapidity of movement, he continued his search, and to the astonishment of Frank Merrill the policeman did not deny his right. In the top left-hand pocket of the waistcoat he pulled out a crumpled slip which proved to be a newspaper clipping.
"Ah!" said the little man. "An advertisement for a manservant cut out of this morning's Daily Telegraph; I saw it myself. Evidently a manservant who was on his way to interview a new employer. You see: 'Call at eight-thirty at Holborn Viaduct Hotel.' He was taking a short cut when his illness overcame him. I know who is advertising for the valet," he added gratuitously; "he is a Mr. T. Burton, who is a rubber factor from Penang. Mr. T. Burton married the daughter of the Reverend George Smith, of Scarborough, in 1889, and has four children, one of whom is at Winchester. Hum!"
He pursed his lips and looked down again at the body; then suddenly he turned to Frank Merrill.
"Do you know this man?" he demanded.
Frank looked at him in astonishment.
"No. Why do you ask?"
"You were looking at him as though you did," said the little man. "That is to say, you were not looking at his face. People who do not look at other people's faces under these circumstances know them."
"Curiously enough," said Frank, with a little smile, "there is some one here I know," and he caught the eye of Constable Wiseman.
That ornament of the Sussex constabulary touched his cap.
"I thought I recognized you, sir. I have often seen you at Weald Lodge," he said.
Further conversation was cut short as they lifted the body on to a stretcher and put it into the interior of the ambulance. The little group watched the white car disappear, and the crowd of idlers began to melt away.
Constable Wiseman took a professional leave of his comrade, and came back to Frank a little shyly.
"You are Mr. Minute's nephew, aren't you, sir?" he asked.
"Quite right," said Frank.
"I used to see you at your uncle's place."
"Uncle's name?"
It was the little man's pert but wholly inoffensive inquiry. He seemed to ask it as a matter of course and as one who had the right to be answered without equivocation.
Frank Merrill laughed.
"My uncle is Mr. John Minute," he said, and added, with a faint touch of sarcasm: "You probably know him."
"Oh, yes," said the other readily. "One of the original Rhodesian pioneers who received a concession from Lo Bengula and amassed a large fortune by the sale of gold-mining properties which proved to be of no especial value. He was tried at Salisbury in 1897 with the murder of two Mashona chiefs, and was acquitted. He amassed another fortune in Johannesburg in the boom of '97, and came to this country in 1901, settling on a small estate between Polegate and Eastbourne. He has one nephew, his heir, Frank Merrill, the son of the late Doctor Henry Merrill, who is an accountant in the London and Western Counties Bank. He—"
Frank looked at him in undisguised amazement.
"You know my uncle?"
"Never met him in my life," said the little man brusquely. He took off his silk hat with a sweep.
"I wish you good afternoon," he said, and strode rapidly away.
The uniformed policeman turned a solemn face upon the group.
"Do you know that gentleman?" asked Frank.
The constable smiled.
"Oh, yes, sir; that is Mr. Mann. At the yard we call him 'The Man Who Knows!'"
"Is he a detective?"
The constable shook his head.
"From what I understand, sir, he does a lot of work for the commissioner and for the government. We have orders never to interfere with him or refuse him any information that we can give."
"The Man Who Knows?" repeated Frank, with a puzzled frown. "What an extraordinary person! What does he know?" he asked suddenly.
"Everything," said the constable comprehensively.
A few minutes later Frank was walking slowly toward Holborn.
"You seem to be rather depressed," smiled the girl.
"Confound that fellow!" said Frank, breaking his silence. "I wonder how he comes to know all about uncle?" He shrugged his shoulders. "Well, dear, this is not a very cheery evening for you. I did not bring you out to see accidents."
"Frank," the girl said suddenly, "I seem to know that man's face—the man who was on the pavement, I mean—"
She stopped with a shudder.
"It seemed a little familiar to me," said Frank thoughtfully.
"Didn't he pass us about twenty minutes ago?"
"He may have done," said Frank, "but I have no particular recollection of it. My impression of him goes much farther back than this evening. Now where could I have seen him?"
"Let's talk about something else," she said quickly. "I haven't a very long time. What am I to do about your uncle?"
He laughed.
"I hardly know what to suggest," he said. "I am very fond of Uncle John, and I hate to run counter to his wishes, but I am certainly not going to allow him to take my love affairs into his hands. I wish to Heaven you had never met him!"
She gave a little gesture of despair.
"It is no use wishing things like that, Frank. You see, I knew your uncle before I knew you. If it had not been for your uncle I should not have met you."
"Tell me what happened," he asked. He looked at his watch. "You had better come on to Victoria," he said, "or I shall lose my train."
He hailed a taxicab, and on the way