“But what has got hold of people?” he asked, abruptly. “Why should all England have gone dotty on the mere subject of dottiness?”

Dr. Hutton smiled his open smile once more and bowed slightly. “As to that also,” he replied, “I don't want to make you vain.”

Turnbull swung round without a word, and he and his companion were lost in the lustrous leafage of the garden. They noticed nothing special about the scene, except that the garden seemed more exquisite than ever in the deepening sunset, and that there seemed to be many more people, whether patients or attendants, walking about in it.

From behind the two black-coated doctors as they stood on the lawn another figure somewhat similarly dressed strode hurriedly past them, having also grizzled hair and an open flapping frock-coat. Both his decisive step and dapper black array marked him out as another medical man, or at least a man in authority, and as he passed Turnbull the latter was aroused by a strong impression of having seen the man somewhere before. It was no one that he knew well, yet he was certain that it was someone at whom he had at sometime or other looked steadily. It was neither the face of a friend nor of an enemy; it aroused neither irritation nor tenderness, yet it was a face which had for some reason been of great importance in his life. Turning and returning, and making detours about the garden, he managed to study the man's face again and again—a moustached, somewhat military face with a monocle, the sort of face that is aristocratic without being distinguished. Turnbull could not remember any particular doctors in his decidedly healthy existence. Was the man a long-lost uncle, or was he only somebody who had sat opposite him regularly in a railway train? At that moment the man knocked down his own eye-glass with a gesture of annoyance; Turnbull remembered the gesture, and the truth sprang up solid in front of him. The man with the moustaches was Cumberland Vane, the London police magistrate before whom he and MacIan had once stood on their trial. The magistrate must have been transferred to some other official duties—to something connected with the inspection of asylums.

Turnbull's heart gave a leap of excitement which was half hope. As a magistrate Mr. Cumberland Vane had been somewhat careless and shallow, but certainly kindly, and not inaccessible to common sense so long as it was put to him in strictly conventional language. He was at least an authority of a more human and refreshing sort than the crank with the wagging beard or the fiend with the forked chin.

He went straight up to the magistrate, and said: “Good evening, Mr. Vane; I doubt if you remember me.”

Cumberland Vane screwed the eye-glass into his scowling face for an instant, and then said curtly but not uncivilly: “Yes, I remember you, sir; assault or battery, wasn't it?—a fellow broke your window. A tall fellow—McSomething—case made rather a noise afterwards.”

“MacIan is the name, sir,” said Turnbull, respectfully; “I have him here with me.”

“Eh!” said Vane very sharply. “Confound him! Has he got anything to do with this game?”

“Mr. Vane,” said Turnbull, pacifically, “I will not pretend that either he or I acted quite decorously on that occasion. You were very lenient with us, and did not treat us as criminals when you very well might. So I am sure you will give us your testimony that, even if we were criminals, we are not lunatics in any legal or medical sense whatever. I am sure you will use your influence for us.”