These are five books from the Sogen Mystery Bunko. The titles are as follows: - Title: Murder on the Orient Express - Title: The Red-Headed League - Title: The Adventure of the Cardboard Box - Title: The Greene Murder Case - Title: The Mystery of the Yellow Room They have been stored at home for a long time, so there may be some yellowing, stains, and folds. They are still readable. They will be shipped via Yu-Packet Post. They will not be sold separately. Thank you for your understanding and consideration before purchasing. Thank you for looking. Mystery Bunko Sogen Mystery Bunko