Belle-on-Sea is getting ready for the Night of the Hungry Ghosts, the spookiest time of the year. Mr Vanderpuff's bake will be the centrepiece of the whole parade, but he needs a new creation and he's totally stumped. To make matters worse, salty old seadog, Captain Lufty, and his Hat Rat, Barry, have warned that something is coming to Belle-on-Sea. Something terrible... When a ghost train is seen rattling into town, and people start to go missing - first the librarian, then the Mayor - Bridget and Tom begin tracking the train's tracks, delighted to be in the thick of another mystery. Then the unthinkable happens: the ghost train takes Mr Vanderpuff! Someone - or something - is out to destroy Belle-on-Sea. But they've forgotten one important detail... This is Bridget's town. Bridget must save the missing people from their perilous prisons, rescue the parade, and come up with an idea for Mr Vanderpuff's Hungry Ghosts bake, before it's too late.