Ghostboy and the Moonbalm Treasure

Alex and his grandfather are ghosts. They've been dead for over 150 years. And they've been haunting Halibut Hall for just as long. Not much happens at Halibut Hall. So when they win a holiday to stay at Moonbalm Hotel - occupied half by the living and half by the dead - for the first time in years they are, well, dumbfounded.