There’s a creepy presence that has been disturbing things at this school in Cork, Ireland… and just in time for Halloween, the alleged poltergeist has returned.

The strange encounter was captured by the school’s security camera late Thursday night, and the footage has experts baffled.

Is this proof an angry ghost walks the halls of this school at night?

Or is this nothing but an elaborate (though difficult to explain) prank?

The video comes from the security cameras at Deerpark School in Cork, Ireland — the oldest school in the 1,100-year-old city — which first reported creepy footage was being captured earlier this month.

Throughout the school’s long history, paranormal activity has been reported multiple times. But with the institution’s new motion-sensitive security cameras, these disturbances are finally being captured on film.

“Our caretaker has worked in the school for over 30 years he recalls many stories of ‘paranormal activity’,” Headteacher Aaron said of the disturbances.

See the spooky footage here and decide for yourself — real, or prank?