"The Lock and Key Library: The most interesting stories of all nations: American" edited by Julian Hawthorne is a collection of intriguing riddle and detective stories compiled in the late 19th century. The anthology features notable authors such as Edgar Allan Poe and Nathaniel Hawthorne, showcasing narratives that revolve around mysteries, puzzles, and moral complexities, emphasizing the nature of human behavior within these contexts. The opening of the collection begins with an introduction by Julian Hawthorne, who explores the evolution and structure of riddle stories. He discusses important elements such as the role of the detective and the art of suspense designed to engage the reader. Following this, the first narrative, "By the Waters of Paradise" by F. Marion Crawford, introduces a melancholic protagonist who grapples with the specters of his past and a perceived family curse, setting a tone of Gothic romanticism. The character's experiences within a grand yet gloomy castle backdrop evoke themes of nostalgia, loss, and an eerie connection to a mysterious female figure. The ground is laid for a series of tales that promise to delve into psychological intricacies and the supernatural elements intertwined within mystery tales. (This is an automatically generated summary.)