“The Lock and Key Library” is an anthology of short stories edited by Julian Hawthorne (1846-1934), an American writer and journalist who was the son of Nathaniel Hawthorne. The edition featuring “Classic Mystery and Detective Stories,” in Modern English was published in 1909, and features stories from such illustrious authors as Rudyard Kipling, A. Conan Doyle, Egerton Castle, Stanley J. Weyman, Wilkie Collins, and Robert Louis Stevenson as well as some stories of anonymous authorship. This is a collection and study of popular short stories from various regions in the world. Julian Hawthorne has provided the curious readers with enough material to understand the roots of modern pulp fiction.