He started to his feet, and looked at me with breathless eagerness as I approached the leading incident of my story.

“It is certain that I went into the room,” I said; “it is certain that I took the Diamond. I can only meet those two plain facts by declaring that, do what I might, I did it without my own knowledge——”

Ezra Jennings caught me excitedly by the arm.

“Stop!” he said. “You have suggested more to me than you suppose. Have you ever been accustomed to the use of opium?”

“I never tasted it in my life.”

“Were your nerves out of order, at this time last year? Were you unusually restless and irritable?”

“Yes.”

“Did you sleep badly?”

“Wretchedly. Many nights I never slept at all.”

“Was the birthday night an exception? Try, and remember. Did you sleep well on that one occasion?”