The Black Robe

As the story begins, Romayne and his friend, Major Hynd, are in Boulogne to visit Romayne's aunt, who is dying. While there, Romayne attends a card game, where he has an argument with a corrupt card sharp, the General, who challenges him to a duel. However, the general doesn't turn up himself but nominates his son, an accurate shot, who should win the duel.

Romayne absolutely does not want to fight but is goaded into doing so.