1. The Lock and Key Library, Classic Mystery and Detective Stories
  2. The Lock and Key Library: Magic and Real Life Detectives
  3. The Lock and Key Library: Stories by Modern American Authors
  4. The Lock and Key Library: Stories by Modern English Authors
  5. The Lock and Key Library: Stories of Modern French Novels
  6. The Lock and Key Library: Most Interesting Stories of All Nations
  7. The Golden Fleece