The Prisoner of Zenda by Anthony Hope is a classic adventure novel set in the fictional kingdom of Ruritania. It follows English gentleman Rudolf Rassendyll, who bears a striking resemblance to King Rudolf of Ruritania. When the king is drugged and kidnapped on the eve of his coronation, Rassendyll is persuaded to impersonate him to prevent a political coup by the villainous half-brother, Prince Michael. The story is filled with intrigue, romance, bravery, and loyalty as Rassendyll navigates dangerous challenges to save the kingdom and faces moral dilemmas about identity and duty.