To the casual observer, Oak Island - a small, unassuming island off the southern shore of Nova Scotia, Canada - may not seem particularly special. But dig deeper, and you'll find that it has had over 50 books written about it, raised the interest of important historical figures and served as the topic of countless documentaries.This is because Oak Island has been the site of a quest for buried treasure for nearly two centuries. Linked with Shakespeare, Marie Antoinette, Captain Kidd, and Franklin D. Roosevelt, Oak Island's mysterious