Is that a ghost that was caught on time-lapse?

MILTON-FREEWATER, Ore. - Here's one for the unexplained mystery files - a spooky image captured during a photo shoot.

Do you see what's to the right of the tree? Kind of looks like a figure of a person, doesn't it? And it's got Nathan Ziegler, the photographer, more than a little baffled.

You see, he set up a camera at the Old Pioneer Cemetery in Milton-Freewater, Ore., and let it run on its own for a few hours. What he wanted was a nice time-lapse of the sunset. What he got was a strange image that appears only in one frame and then disappears. Ziegler shows what he captured in this video:

Was it a ghost? Could it have actually been a real person? Did a tree branch fall? Is it all just an elaborate hoax? Who knows at this point - we'd love to hear you weigh in on our comment board.

There is more to the story - Ziegler talked to the Union-Bulletin out of Walla Walla, Wash., about the image and is also blogging about the mystery.