"The Oblong Box" is a short story written by Edgar Allan Poe that explores themes of love, jealousy, and the consequences of secrets. The narrative follows a man named Wyatt, who is traveling by ship with a mysterious box that he keeps hidden from others. The box is linked to his deceased wife, and its contents hold significant emotional weight for him. As the story unfolds, the tension builds around the box's mystery. The crew and passengers speculate about its contents, leading to a dramatic revelation. Ultimately, the story highlights the impact of unresolved grief and the lengths to which people will go to protect their memories.