A sudden idea, an inspiration from Heaven, flashed across my mind. I put my hand in the pocket of my coat—my box of crayons was there!

Then rushing to the wall, I began to trace the scene of the murder with superhuman energy. No uncertainty, no hesitation! I knew the man! I had seen him! He was there before me!

At ten o'clock the jailer came to my cell. His owl-like impassibility gave place to admiration.

"Is it possible?" he cried, standing at the threshold.

"Go, bring me my judges," I said to him, pursuing my work with an increasing exultation.

Schlüssel answered:

"They are waiting for you in the trial-room."

"I wish to make a revelation," I cried, as I put the finishing touches to the mysterious personage.

He lived; he was frightful to see. His full-faced figure, foreshortened upon the wall, stood out from the white background with an astonishing vitality.

The jailer went away.