24 pages : color illustrations ; 26 cm.
World's greatest mysteries
World's greatest mysteries.
People have believed in ghosts since ancient times. In 2018, more than half of the people responding to a survey believed they had seen one. Learn more in Investigating Ghosts, a World's Greatest Mysteries book.
Ghostly encounters -- Ghost timeline -- Understanding ghosts -- Ghosts in the United States -- Investigating ghosts -- Quiz -- Key words/Index.