"Nor where he lives."
"I must obey you, I suppose," I said.
"It will be advisable, and you must obey me implicitly. Deviate by a hair's breadth from what I require of you, and I withdraw my promise, which now exists in full integrity. Decide."
"I have decided. I will remain in that room."
"There is another point upon which I must insist positively. From that room you do not stir until I bid you; in that room you do not speak unless you receive a cue from me. Agreed?"
"Agreed."
"On your honour?"
"On my honour."
"Good. Now you can retire. You will find books in there to amuse you if you get wearied with your watch."
He opened the door for me, and closed it upon me. He had spoken correctly. Through the ground glass I could see everything in the shop, and I took his word for it that I could not myself be seen.