Ellison listened with his peculiar interest,--an interest in events rather than in persons, and in ideas more than either. At the end he nodded his alert head rapidly.

"Yes, I knew Garney had practised hypnotism but I thought it was years ago. Barker told me, in strict confidence."

"Barker!"

He nodded. "Yes. I didn't say anything about it, because people seemed to think it wasn't good form for me to have any civil relations with the man who had killed my second cousin, but as a matter of fact, I knew him fairly well. Gene would turn white at the mention of his name, so I didn't mention it. That check for $250--you remember?"

"Yes."

"Well, that was to pay for a course of lessons in hypnotism. He promised to get me a practical teacher who had been a public performer,--Garney, in fact. He hadn't made the arrangements yet, but he was confident that he could bring it about. And I was eager to have the opportunity to investigate the matter, scientifically, you understand. If he could teach me how to do it, I would understand the thing,--the rationale of it, I mean. But it was strictly confidential, because of Garney's position in the university."

"Did he know you knew?"

"No. Barker was killed before he could arrange it. I went to his room the next day, to see if I could by chance recover that check, which hadn't been presented at the bank, but his dragon landlady gave me no chance,--and then you told me that you saw it in his pocket the next day. So I let things take their own course."

"Somebody did break into his rooms that night," I said. "That has never been cleared up."

"Garney!" said Ellison, shrewdly. "He has in his possession certain books which I know Barker had in his room the day before. He undoubtedly removed them, with any papers or other matters that might have connected him with Barker or revealed his practices."