I did not see Luther sitting at his desk, but standing in front of the bookshelves of a library holding a book in his head bowed in hand, reading it carefully with his back to me. I walked in quietly, closed the door without making a sound, then stood up straight, looking at his wide back.

He turned his head back and his eyes widened when he saw me standing there and gave him an embarrassed smile.

“Next!…..when did you come in?” he asked, surprised.

"Hm, just a moment ago. Are you busy?"

I replied trying to look at him without looking nervous as an idiot.

He nodded , "Of...