Riddle of the Dragon's Tear

When Hannah and Ryan Donovan's mother, Rosheen, inherited Crags Point, the idea of turning it into a tourist bed and breakfast would help them run the estate and hopefully make a modest living. But when Hannah finds an old diary of a young woman who lived there many years ago, the hint of a hidden treasure sparks everyone's curiosity. Along with searching for the treasure, some of the guests prove to be most interesting and soon Hannah, her brother, and their friends are embroiled in a mystery. Can Hannah and Ryan find the treasure before the nosy guests do, or will the Donovans be cheated out of what is rightly theirs?