The Great Unsolved Mystery of 1826

An unknown man is found buried in a cave on the side of a mountain in the White Mountains. Evidence reveals he died in a landslide in 1826. Why was holding in his hand a leather pouch containing a gold wedding ring? What connection does the ring have with the famous author Nathaniel Hawthorne and King Richard the Third of England? These are the mysterious set of clues that Gallagher Brady and Jonathan Henry must solve on their third adventure.