Some people believe in ghosts. Others think they're not real. Which side are you on? Readers are invited to form their own opinion on the existence of ghosts after exploring this cross-curricular volume that combines scientific facts with multicultural studies. The exciting, informative text introduces readers to the ways various cultures interpret the idea of ghosts--from spirits of beloved ancestors to terrifying ghouls. This introduces them to fundamental facts about different religions, cultural practices, and mythological traditions. They are also invited to learn about the science behind the paranormal and meet the people who study whether or not ghost stories are real.