History of the Fateful Coin gives some background information on the goddess of luck, Tymora, often called Lady Luck, and how this coin of hers affects those in the Realms. One copy of this book is needed for Firebead Elvenhair's side quest in Beregost. It is sold at The Friendly Arm, Feldepost's Inn and Nashkel Store, but can also be found in bookshelves of the house just south from the Firebead's house.