Five Have a Mystery to Solve (Knight Books) By Blyton, Enid Books / Paperback Books ISBN: 0340134690 / Publisher: Hodder & Stoughton General Division, February 1978 Price Starting at $5.65 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Used - Good Good condition. $5.65 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for Five Have a Mystery to Solve (Knight Books)