Gwennie Hitchcock goes on a vacation to the island of Unskey with her family, but gets separated from them on a misty moor. Along with her annoying brother, Gwennie must brave the moor and find her way to safety, aided by a local boy named Tyler who is searching for a mythical beast that killed his mother. Together, they must survive the moor and evade the dangerous Beast of Meon Rise. This thrilling tale of friendship and adventure is suitable for readers aged 10-14, but can be enjoyed by all.