Elmo isn't so sure that it's a good idea to go to work for his great aunt in the country. He's never met her and Mistfall, her big old house, is far from the nearest town.
But the rest of the gang like the idea of an easy job in the fresh air. And Aunt Vivien is offering good money. She's very, very keen for them to visit.
Five minutes at Mistfall are enough to make them all realise they've made a big mistake. But by then - it's too late.