(N.Morgan) We’ve all heard ghost stories that may have kept us up at night. In the video below, it appears a shadow person walks across the entrance at Dover Castle. It is so clear, the guard came out to see is anyone was truly there. This is the extraordinary moment a ‘GHOST’ floats across the entrance to an historic castle. In the incredible clip, a dark, wispy figure can be seen slowly walking across the entrance at Dover Castle in Kent before disappearing. A bemused security guard can then be seen searching in vain for the mysterious specter. The one minute, 11 second clip was uploaded to YouTube by a user known only as spyder1spanner2. A message accompanying the post read: “I promise you this is not a fake. “It’s filmed on CCTV at Dover Castle on to a mobile.