Just then the butler entered with our cards. We heard no more. A moment later we were ushered into the library.

Mrs. Barry was a trim, well-groomed woman whose age was deceptive. I felt that no matter what one might think of Miss Laidlaw, here was a woman whose very looks seemed to warn one to be on his guard. She was a woman of the world, confident in her own ability to take care of herself.

Adele was flushed and excited, as we entered, though she was making a desperate effort to act as though nothing had happened.

"My friend, Professor Kennedy, and Mr. Jameson," she introduced us simply, making no pretense to conceal our identity.

Mrs. Barry was, in addition to her other accomplishments, a good actress. "I've heard a great deal about you, Professor," she said, extending her hand, but not taking her eyes off Craig's face.

Kennedy met her gaze directly. What did she mean? Had she accepted Miss Laidlaw's invitation to call in order to look us over, knowing that we had come to do the same?

"Mr. Creighton tells me that you have been to see his new motor," she ventured, even before any of us could open the subject.

She seemed to enjoy making the remark for the specific purpose of rousing Miss Laidlaw. It succeeded amply, also. The implication that Creighton took her into his confidence was sufficient to cause Adele Laidlaw to shoot an angry glance at her.

Mrs. Barry had no objection to sticking a knife in and turning it around. "Of course I don't know as much about such things as Miss Laidlaw," she purred, "but Mr. Tresham tells me that there may be some trouble with the patent office about allowing the patent. From all I have heard there's a fortune in that motor for someone. Wonderful, isn't it?"

Even the mention of Tresham's name in the studied familiarity of her tone seemed to increase the scarcely latent hostility between the two women. Kennedy, so far, had said nothing, content merely to observe.