Someone had mentioned that remarkable book, The Mind that Found Itself, and the conversation had slipped into this serious vein. The women did not like it. What kept it alive was the fact that the silent Leidall, with his handsome, melancholy face, had suddenly wakened into speech, and that the little man opposite to him, half invisible in his dark corner, was assistant to one of London’s great hypnotic doctors, who could, an’ he would, tell interesting and terrible things. No one cared to ask the direct question, but all hoped for revelations, possibly about people they actually knew. It was a very ordinary tea-party indeed. And this little man now spoke, though hardly in the desired vein. He addressed his remarks to Leidall across the disappointed lady.

“I think, probably, your explanation is the true one,” he said gently, “for madness in its commoner forms is merely want of proportion; the mind gets out of right and proper relations with its environment. The majority of madmen are mad on one thing only, while the rest of them is as sane as myself—or you.”

The words fell into the silence. Leidall bowed his agreement, saying no actual word. The ladies fidgeted. Someone made a jocular remark to the effect that most of the world was mad anyhow, and the conversation shifted with relief into a lighter vein—the scandal in the family of a politician. Everybody talked at once. Cigarettes were lit. The corner soon became excited and even uproarious. The tea-party was a great success, and the offended lady no longer ignored, led all the skirmishes—towards herself. She was in her element. Only Leidall and the little invisible man in the corner took small part in it; and presently, seizing the opportunity when some new arrivals joined the group, Leidall rose to say his adieux, and slipped away, his departure scarcely noticed. Dr. Hancock followed him a minute later. The two men met in the hall; Leidall already had his hat and coat on. “I’m going West, Mr. Leidall. If that’s your way too, and you feel inclined for the walk, we might go together.” Leidall turned with a start. His glance took in the other with avidity—a keenly-searching, hungry glance. He hesitated for an imperceptible moment, then made a movement towards him, half inviting, while a curious shadow dropped across his face and vanished. It was both pathetic and terrible. The lips trembled. He seemed to say, “God bless you; do come with me!” But no words were audible.

“It’s a pleasant evening for a walk,” added Dr. Hancock gently; “clean and dry under foot for a change. I’ll get my hat and join you in a second.” And there was a hint, the merest flavour, of authority in his voice.

That touch of authority was his mistake. Instantly Leidall’s hesitation passed. “I’m sorry,” he said abruptly, “but I’m afraid I must take a taxi. I have an appointment at the Club and I’m late already.” “Oh, I see,” the other replied, with a kindly smile; “then I mustn’t keep you. But if you ever have a free evening, won’t you look me up, or come and dine? You’ll find my telephone number in the book. I should like to talk with you about—those things we mentioned at tea.” Leidall thanked him politely and went out. The memory of the little man’s kindly sympathy and understanding eyes went with him.

“Who was that man?” someone asked, the moment Leidall had left the tea-table. “Surely he’s not the Leidall who wrote that awful book some years ago?”

“Yes—the Gulf of Darkness. Did you read it?”

They discussed it and its author for five minutes, deciding by a large majority that it was the book of a madman. Silent, rude men like that always had a screw loose somewhere, they agreed. Silence was invariably morbid.

“And did you notice Dr. Hancock? He never took his eyes off him. That’s why he followed him out like that. I wonder if he thought anything!”

“I know Hancock well,” said the lady of the wounded vanity. “I’ll ask him and find out.” They chattered on, somebody mentioned a risqué play, the talk switched into other fields, and in due course the tea-party came to an end.