The Room in the Dragon Volant

By Le Fanu Joseph Sheridan

The protagonist, Richard Beckett, suspects that his host, the Marquis de la Tournoire, is involved in a plot to murder him when he overhears a conversation. However, it is revealed that the Marquis is simply trying to protect him from his own delusions. In the end, Beckett leaves the castle with a newfound appreciation for hallucinations.