“Give me that sheet of paper. . . . I want to see . . .”

He took the paper out of the doctor’s hand, ran his eyes down it and suddenly leapt backwards:

“What name have you put? What name have you put? What right have you to give me that name? Why did you do it?”

“You told me to put any name I pleased, you know.”

“But why this one? Why this one?”

“Can it be your own?”

The old man started with terror and, bending lower and lower over the doctor, said, in a trembling voice:

“One man alone, one man alone was capable of guessing . . .”

There was a long pause. Then the doctor gave a little chuckle:

“I know that only one man was capable of it. So let’s take it that I’m the man.”