Introduces spies and traitors throughout history, as well as their tools and technology.

Explores both sides of the question of whether or not witchcraft is destructive, looking at issues related to the Harry Potter books, wiccans serving in the military, and the validity of magic.

Explores the nature of ghosts and poltergeists and possible earthly explanations for them.

Scientific research, eyewitness accounts and government reports are used to examine the theory that haunted houses exist.

Explores mysterious places, both ancient and recent, that can provide a better understanding on how people think about the unknown.

Readers will examine the history of time travel, Project Pegasus, famous time travel literature, time slippage, Einstein's theory of relativity and more before deciding for themselves! Table of contents, fun facts, a glossary, and an index are included.

Readers will examine the history of artificial intelligence, leading scientists in the field, the Three Laws of robots, the singularity, Sophia the robot, and more before deciding for themselves!