I responded to the lawyer's beady look with blue-eyed innocence.
"So you were instructed to deliver the envelope to a mysteriously unknown identity? Please explain how."
"I had to enter the library at midday and place the envelope between pages 23 and 24 of the fifth book on the bottom shelf of the last aisle. The book was called, Sheridan's Close," I added confidently. I'd been to the library that day to make sure there was no flaw in my plan.
"Curious," said the lawyer to the jury, "since pages 23 and 24 of all books occupy a single leaf."