Prepare your magnifying glasses to peer into the History's Greatest Mysteries series (6 titles). Each title presents several curiosities of modern history, with a four-chapter breakdown: a topic introduction, followed by three relevant historical events. Thoughtfully illustrated with well-chosen artwork and photographs, the books immerse readers in cultural context and intrigue. The information is surprisingly pragmatic, presenting each event with supporting facts and potential solutions but never assuming a case-cracking conclusion. History's Infamous Unsolved Crimes considers the Isabella Stewart Gardener Museum heist, the disappearance of young Walter Collins in 1928, and a daring escape from Alcatraz. Curious young sleuths can pursue additional leads by following the books' QR codes to relevant online resources. A compelling, high-interest potpourri.