In 1828, 13-year-old John A. Macdonald receives a treasure map. Stone Mills is buzzing with the news of a mysterious serpent in the Lake of the Mountain. John is certain that this will be the best summer ever and he is determined to solve both mysteries. As John searches to discover the truth, he realizes that his family may be in danger. John finds the inner strength to save his sister and locate the vigilante who is terrorizing Stone Mills.--Ministry of Education website.

English language arts grade 8 (2009). Additional online support can be found on the Fireside Publishing website.--Ministry of Education website. Notes: The Ministry of Education has not evaluated the websites mentioned in the book.--Ministry of Education website. Includes "Questions & answers" at the end of the book.