"Which means that I shall show to the public the pictures which your uncle used to produce."
"Have you ever seen them?"
"No. I speak from your evidence and your interviews."
"Do you know how my uncle used to produce them?"
"I do, since yesterday evening."
"Then you have seen the manuscript of which I was robbed and the formula stolen by the murderer?"
"Since yesterday evening, I say."
"But how?" I exclaimed, excitedly.
"How? By a simple trick."
"What do you mean?"