Book titles: Partners in Crime The Witness for the Prosecution The Mysterious Mr. Quin Elephants Cab Remember This is a wonderful paperback set of four books by Agatha Christie titled "Murder By The Box". Published by Berkley in 1984, these vintage books are a must-have for any mystery and detective enthusiast. Each book is in excellent shape and has been well-maintained, with no signs of wear and tear. Ihe set is in its original box and is a great addition to any collection. The books are written in English and are perfect for anyone who loves traditional mystery and detective stories.