Postcard Mysteries (Paperback): Dear Pirate, The Buried Treasure Mystery is an intriguing mystery book that is part of the Postcard Mysteries series. Written in a paperback format, this book is perfect for mystery lovers of all ages. Join the characters as they embark on a thrilling adventure to uncover the secrets of the buried treasure. With its captivating storyline and engaging plot twists, this book will keep readers on the edge of their seats from beginning to end.