"True, true, sir; and yet there is something unnatural in his conduct, something I fail to understand. But I don't despair. I won't despair; we have only begun the recapitulation of details from which I hope so much; supposing we go on." And he sunk his head again in his hands.

I at once took up the thread of my relation at the point where I had dropped it.

"When I approached Mr. Gillespie I noted three things besides his tortured face and sinking figure. First, that the shade was pulled up over his desk; second, that a typewriter stood close to his hand; and third, that a pot of paste, knocked over by some previous movement on his part, lay near the typewriter, with its contents oozing over a sheet of unused paper. You ask me to mention all details and I have done so."

Dreamily he moved his finger, but whether in thanks or in an injunction for me to continue, I could not determine. I therefore remained still.

"I saw the paste," he murmured. And taking this as an intimation to proceed, I went on till I came to the moment when I pulled down the shade.

"You glanced out as you did that?" said he, lifting his finger as a signal for me to pause.

"Yes."

"And saw Mr. Rosenthal in his room in the neighbouring extension?"

"Yes."

"Standing how? With his back or his face to the window?"