Could spectres be real? Staff at Chester Castle think they have caught a ghost on camera. They are among the millions who believe in ghosts, despite scientific scepticism.
Historic castle shares ‘ghost’ picture
Spooky sighting: No one has been able to explain who — or what — the camera at Chester Castle captured that night. Glossary
Chester - A city in northwest England.
English Heritage - A charity that manages historic monuments and sites in England.
Halloween - A celebration observed in many countries on 31 October, on the evening before the Christian feast of All Hallows' Day.
YouGov - A British public opinion and polling company. It was co-founded by Nadhim Zahawi, a Conservative Party politician.
Eerie - Strange in a way that makes you feel uneasy or slightly frightened.
Psychologist - Someone who studies the mind, emotions and behaviour.
Hallucinate - To see, hear, or feel something that is not really there, usually as a result of illness, stress, or certain substances.
Laws of physics - Statements, based on repeated experiments or observations, that describe how the universe or world works. For example: Newton's Laws of Motion.
Bermuda Triangle - A loosely defined triangular area in the North Atlantic ocean off the North American coast, in which multiple ships and airplanes are said to have "mysteriously disappeared".