"A Fishy Story" is a story about the narrator and his friend, staying in an inn. In the lobby, they find a trout placed in a glass case over the wardrobe. They find many people, claiming that they had caught the trout. It filled the two with laughter, and a bit of suspense as well. They tried to get hold of the trout, but fumble, and drop it down. It broke into several pieces. They found it absurd how a stuffed trout could break; then they realise that it was made up of Plaster of Paris.
There is a pun intended on the word "Fishy". Firstly, it refers to the FISH itself. At the same time, it refers to the aroma of curiosity and suspense created.