The Diamond Lens

Fitz-James O'Brien's "The Diamond Lens" is a story about a man who falls in love with a being he observes through a microscope within a drop of water. This tale is considered a precursor to modern science fiction due to its psychologically penetrating themes and exploration of pseudoscience. O'Brien, an Irish-born American writer, penned this story in the late 1850s, a period when he was active in New York City's literary scene. He also wrote other notable stories like "What Was It?" and "The Wondersmith," which delved into uncanny and speculative subjects. O'Brien's life was cut short when he died from wounds sustained during the American Civil War.1