Ten-year-old Dylan couldn't believe his luck when his father inherits an old lighthouse and cottage in Salvation Point, Maine. Spending the summer there with his family was a dream come true! He couldn't wait to explore the small town down the road, go sailing on the bay, and search for a legendary pirate treasure rumored to be buried nearby.

When strange things start happening at the cottage, Dylan discovers he's not alone. Matthias, a gruff lighthouse keeper who died a century ago, is now haunting Dylan's bedroom. Despite his initial shock, Dylan is thrilled to have a ghostly companion and the two become unlikely friends.

But their carefree summer turns dark when a greedy treasure hunter threatens their home. He will stop at nothing to find the pirate's riches, even if it means kidnapping! As Dylan and Matthias team up to protect their beloved lighthouse, they find themselves in the midst of a dangerous adventure that will test their bravery and change Dylan's life forever.