“I received a visit from a man who offered me a very large sum to favor the defense of one case and the prosecution of another. I refused. After that I received the Double Z warning.”

“You knew the man who tried to bribe you?”

“I knew the man.”

“But you said nothing?”

“I could do nothing at the time. It would have been impossible. The standing of the man — well, you will realize it later when I tell you who he is. The warning came from him.”

“He is Double Z?”

“Yes. He knows that I am still alive. He wants to kill me. I have frustrated the man for months. I shaved my mustache and dyed my hair. Yet, despite my changed appearance, you recognized me, which is proof that my disguise is insufficient. So I am now ready to act; to bring this affair to a crisis; to meet my enemy and turn his own weapons upon him.”

“His own weapons?”

“Yes. The letters he has been sending to the police. What do you think is their purpose?”

“I considered them the messages of a fanatic.”