Psychologist Dr Richard Wiseman said the specter (seen in a long coat walking through a doorway in a closed-circuit television image and that has been nicknamed “Skeletor”), might prove to be a significant discovery. He said, “It could be the best ghost sighting ever. I haven’t seen anything that would match that at all.”

The skeptics, of course, dismiss the images on the closed-circuit television pictures as just the product of overactive imaginations and believe none of this, but here’s how it all went down:

It happened at the 16th-century palace that was once home to King Henry VIII in London, England, in October 2003. (Halloween? We’re not sure about that.) Security guards were alerted by alarms ringing near an exhibition hall. The alarm told the guards that fire doors had been opened. But when the guards investigated, they found the doors closed.

The guards knew that they had not imagined the alarms going off, so they looked at the closed-circuit television footage of the area. That’s when things got spooky! The film shows the heavy doors popping open but no living person in sight. Then, suddenly, an image in a long coat appears on the film and slams the doors shut.

The guards say that the same thing happened on two consecutive nights, but the image was only caught on film once.

Some tourists from Australia claim to have seen the same ghost loitering around the same exhibition area at another time. So far, however, the image of the ghost has not been captured on closed-circuit television again.

The castle has a long history of hauntings. This is, after all, London, and the castle has been the scene of a great many dramatic royal events over the centuries.