The United States is a vast country full of secrets.United States history was often shaped by revolutionaries and dreamers, but it also has plenty of mysteries that are waiting to be solved-maybe by you. In these thirteen stories, journey back in time and across the United States with historian E.B. Wheeler. Search for lost colonies and vanished explorers. Hunt for treasures left by Aztec royalty, daring pirates, and crafty mobsters. Try to uncover the identities of patriotic spies and ruthless assassins. Along the way, you'll encounter amazing legends, unexplained phenomena, and a ghost story or two.ATOS level 7.7 (approximately Lexile 1050). Great for middle school and junior high students and anyone who loves history and true mysteries.