Hidden Author:Dotti Enderle A sealed envelope reveals clues to a hidden treasure. Twelve-year-old Fiona finds an unopened love letter containing mysterious symbols when she and her parents clear out her recently deceased grandmother's house. She soon realizes the symbols contain clues to a long-hidden treasure, and suddenly, her grandmother's house and belongings ... more » are more than just old, boring junk. Solving the mystery requires Fiona to learn more about both astronomy and mythology as she discovers the clues to two murders and a kidnapping, encounters a ghost, and eventually finds buried treasure.« less