Sighting: Mantel and Pnin

From Ian Crouch's Hilary Mantel and the Pitfalls of the Public Lecture:

She might have suffered the transportation indignities of Nabokov’s poor Professor Timofey Pnin, who, when we meet him, is seated comfortably in a compartment on what we learn is the wrong train, on his way to deliver a lecture—“Are the Russian People Communist?”—to the august ladies of the Cremona Women’s Club. He soon learns of the mistake, too, and a conductor sends him from the train to wait for a promised bus. What follows qualifies, as the narrator promises, as “still better sessions in the way of humor.”