Mardi Gras Masquerade

When Nancy and her friends attend a Mardi Gras ball at a so-called haunted mansion, George brings along a digital camera to catch some ghosts in action. When freaky things start to happen, the guests begin to wonder if the ghost stories could actually be true. But when Deirdre Shannon's antique tiara is snatched, Nancy is pretty certain the crook isn't a ghost.