Mysteries of history

Area 51 was been rumored for years to be a secret air base. It was a place where weird events occurred: government experiments with nuclear bombs and signings of unidentified flying objects (UFOs). Learn about leading theories and study the evidence to develop your own conclusions about what happened and what still happens today in Area 51.

"Get closer to solving the mystery of the Mary Celeste with this riveting title. Learn about leading theories, important clues, and study the evidence to develop your on conclusions about the disappearance of this ship."--Publisher's website.

The British colony of Roanoke was settled in 1587. Three years later, the residents had all vanished. Learn about leading theories and study the evidence to develop your own conclusions about the disappearance of this group of people.