Mr. Briggerland, it seemed, had some other object in life than the regeneration of the criminal classes. He was a sociologist--a loose title which covers a great deal of inquisitive investigation into other people's affairs. Moreover, he had published a book on the subject. His name was on the title page and the book had been reviewed to his credit; though in truth he did no more than suggest the title, the work in question having been carried out by a writer on the subject who, for a consideration, had allowed Mr. Briggerland to adopt the child of his brain.

On a morning when pale yellow sunlight brightened his dining-room, Mr. Briggerland put down his newspaper and looked across the table at his daughter. He had a club in the East End of London and his manager had telephoned that morning sending a somewhat unhappy report.

"Do you remember that man Talmot, my dear?" he asked.

She nodded, and looked up quickly.

"Yes, what about him?"

"He's in hospital," said Mr. Briggerland. "I fear that he and Hoggins were engaged in some nefarious plan and that in making an attempt to enter--as, of course, they had no right to enter--a block of flats in Cavendish Place, poor Talmot slipped and fell from the fourth floor window-sill, breaking his leg. Hoggins had to carry him to hospital."

The girl reached for bacon from the hot plate.

"He should have broken his neck," she said calmly. "I suppose now the police are making tender inquiries?"

"No, no," Mr. Briggerland hastened to assure her. "Nobody knows anything about it, not even the--er--fortunate occupant of the flat they were evidently trying to burgle. I only learnt of it because the manager of the club, who gets information of this character, thought I would be interested."

"Anyway I'm glad they didn't succeed," said Jean after a while. "The possibility of their trying rather worried me. The Hoggins type is such a bungler that it was almost certain they would fail."

It was a curious fact that whilst her father made the most guarded references to all their exploits and clothed them with garments of euphemism, his daughter never attempted any such disguise. The psychologist would find in Mr. Briggerland's reticence the embryo of a once dominant rectitude, no trace of which remained in his daughter's moral equipment.

"I have been trying to place this man Jaggs," she went on with a little puzzled frown, "and he completely baffles me. He arrives every night in a taxicab, sometimes from St. Pancras, sometimes from Euston, sometimes from London Bridge Station."

"Do you think he is a detective?"

"I don't know," she said thoughtfully. "If he is, he has been imported from the provinces. He is not a Scotland Yard man. He may, of course, be an old police pensioner, and I have been trying to trace him from that source."

"It should not be difficult to find out all about him," said Mr. Briggerland easily. "A man with his afflictions should be pretty well-known."

He looked at his watch.

"My appointment at Norwood is at eleven o'clock," he said. He made a little grimace of disgust.

"Would you rather I went?" asked the girl.

Mr. Briggerland would much rather that she had undertaken the disagreeable experience which lay before him, but he dare not confess as much.

"You, my dear? Of course not! I would not allow you to have such an experience. No, no, I don't mind it a bit."

Nevertheless, he tossed down two long glasses of brandy before he left.

His car set him down before the iron gates of a squat and ugly stucco building, surrounded by high walls, and the uniformed attendant, having examined his credentials, admitted him. He had to wait a little while before a second attendant arrived to conduct him to the medical superintendent, an elderly man who did not seem overwhelmed with joy at the honour Mr. Briggerland was paying him.

"I'm sorry I shan't be able to show you round, Mr. Briggerland," he said. "I have an engagement in town, but my assistant, Dr. Carew, will conduct you over the asylum and give you all the information you require. This, of course, as you know, is a private institution. I should have thought you would have got more material for your book in one of the big public asylums. The people who are sent to Norwood, you know, are not the mild cases, and you will see some rather terrible sights. You are prepared for that?"

Mr. Briggerland nodded. He was prepared to the extent of two full noggins of brandy. Moreover, he was well aware that Norwood was the asylum to which the more dangerous of lunatics were transferred.

Dr. Carew proved to be a young and enthusiastic alienist whose heart and soul was in his work.

"I suppose you are prepared to see jumpy things," he said with a smile, as he conducted Mr. Briggerland along a stone-vaulted corridor.

He opened a steel gate, the bars of which were encased with thick layers of rubber, crossed a grassy plot (there were no stone-flagged paths at Norwood) and entered one of the three buildings which constituted the asylum proper.

It was a harrowing, heart-breaking, and to some extent, a disappointing experience for Mr. Briggerland. True, his heart did not break, because it was made of infrangible material, and his disappointment was counter-balanced by a certain vague relief.

At the end of two hours' inspection they were standi............