We have offered here a 10 volume set from the Lock and Key Library. The set has Classic Mystery and Detective Stories of All Nations. They are from North Europe, Mediterranean, German, Classic French, Modern French, French Novels, Old Time English, Modern English, American, and Real Life. The books are all hardcover, and are in good used condition. A couple have bruised corners, and minor stains. Looks like a fun set to read, as well as a handsome set to garnish your bookcases.