When something or some one turns up missing, it is unexpected. Law enforcement professionals are skilled at tracking the missing. Sometimes, however, a disappearance is inexplicable. A spacecraft disappears millions of miles from Earth. A ship or plane vanishes in the Bermuda Triangle.

Includes index. Includes index.

Introduction -- The FBI's ten most wanted -- The Bermuda triangle -- Mission to Mars -- Missing treasure found -- The ivory-billed woodpecker -- Book review -- Glossary -- Index.