Gaganov is the son of a man whose nose Nikolay pulled when he was in town four years before the story takes place. Nikolay formally apologized to the man, and the man forgave him, but Gaganov still holds a grudge. That grudge leads to a duel, which Nikolay agrees to so that Gaganov will stop bothering him. In the duel, Nikolay refuses to fire at Gaganov, and both men survive.