He gave a heavy wink, and Billy smiled. Undoubtedly Paul Harker was quite a pleasant fellow.

II

There were six women in the room when they entered and one somewhat anæmic-looking man.

"Hope I'm not late, my dear," said Paul Harker, breezily, to a pale, delicate-looking woman who rose to meet them. "I've brought a friend who is interested in these things. Mr. Merton—my wife."

Billy Merton bowed, and took a chair beside her.

"We hope for some very interesting results to-night, Mr. Merton," she remarked. "Professor Granger feels confident of getting a tangible materialization."

"Indeed!"

Mindful of his host's injunction, he nodded portentously. His ideas on what a tangible materialization was were of the vaguest: if it was anything like Professor Granger, he inwardly trusted the experiment would fail.

For a few minutes they continued to talk generalities: then Mrs. Harker rose and crossed to the Professor, leaving Merton to his own devices. With some interest he glanced round the room. Heavy black curtains hung over the windows and the door. The furniture was reduced to a minimum, the whole of the centre of the floor being empty. Around the walls were ranged easy chairs draped in some dark material: the carpet, thick and luxurious, was dark also. In fact, the whole room was sombre—sombre and silent.

Curiously he glanced at his companions. In one corner four of the women were talking in low, restrained tones, evidently impressed with the solemnity of the occasion, and involuntarily Merton smiled. They seemed so very earnest—and so very dull. Then he looked at the other woman who was standing by Paul Harker. She seemed of a different type—very far from being dull. Tall and perfectly proportioned, she was dressed in black, and as his eyes rested idly on the pair it struck him that his host found her far from dull also. And at that moment they both turned and looked at him.