"Hello, I have been searching for a book for 50 years, it's Ballantyne, the Gorilla Hunters. I had a copy as a boy. When I left for national service, my mother gave it away. I've been looking for it ever since - I doubt you will be able to help me, nobody has been able to."
"Yes sir, we have a 1907 copy here, in excellent condition for £4"
"Oh have you......"
Can anyone fill in what happened next ?