Unexplained! explores the world's most puzzling mysteries, from eerie ghost stories and alleged alien encounters to strange disappearances and unexplained events. Each book examines the evidence behind a fascinating mystery, presenting eyewitness accounts, historical details, and intriguing clues that encourage readers to think critically. When available, readers also discover the legends surrounding the mystery as well as scientific theories or other possible explanations. 'Myth or Fact?' sidebars challenge common beliefs with surprising facts, helping readers separate evidence from speculation. Sources for further research invite curious readers to continue investigating these captivating mysteries on their own. Additional features to aid comprehension include a table of contents, detailed captions, a phonetic glossary, an index, an introduction to the author, and critical-thinking questions.