If you don't believe in ghosts, this might make you think twice.
At first glance, this picture looks like a seemingly normal photo of a group of people smiling for the camera.
But look closer: the image, taken by ghost hunter Phillip Baron before a tour at the old asylum in Newsham Park, appears to show a figure of a girl in the middle.
And nobody knows who she is.
Phillip said nobody else who was there remembered the person, who appears between two others in the shot taken before a ghost hunt.
The ghost girl is seen smiling among the crowds of people posing for a photo
Liverpool Echo readers have been debating the image online, with some suggesting an elaborate hoax - while others say there could be something in it.
But one reader spotted something even Phillip did not - the possibility of there being one, or even two, more people close to the "ghost girl".
Let's take a look...
The woman's face, circled, appears quite clear. She also seems to be in a different light compared to the other people around her in the image.
Phillip said: "I have never come across anything like this before."
The haunting figure was captured on camera right before a ghost tour of an old asylum
Someone sent the photo back to the Liverpool Echo through Facebook, circling what they believe are the two extra ghosts.
There certainly does appear to be something resembling eyes, a nose and mouth in the middle circle.
The lower one is less distinct - or maybe it's in the eye of the beholder.
A trick of the light, or something more sinister?