One for the books

When I was in Vinnies thrift shop this week with Keith Curtis, I paused to look at an old book. 
Our conversation went as follows:
"Look at this one.."
"Yes, I saw that."
"By Ilf and Petrov..."
"..the Russian humorists."
"They wrote ..."
"THE TWELVE CHAIRS, yes."
 
About this stage, I began to feel I was taking part in that famous exchange between Sherlock Holmes and Professor Moriarty:
“Everything I have to say has already crossed your mind."
"Then possibly my answer has crossed yours.”