Hanna Gaikis now 13] and her mother have moved from their cramped basement apartment. When Mrs. Gaikis is offered her original job back as restaurant manager at Mosquito Creek Inn, the inn's owner also provides the widow and her daughter an outlying log cabin, once the home of the original foreman for historical Grant Ranch. However, during her first night in the cabin, Hanna has a haunting dream. While researching material for a school assignment, Hanna and Stephen Anderlund now 13] find artifacts buried beneath the log cabin that only lead to more questions. As the young detectives band together to search further, they stumble onto a murder mystery that dates back to the founding of their town - with the legendary White Buffalo in Hanna's dreams leaving the club members more illusive clues...