Widowed Mrs Martingale and her four children inherit a castle in the will of an elderly relative. When they move in they find dear old Miss Button, the housekeeper, a whole host of cats and, odder still, a boy called Christopher Sixpence who keeps appearing and disappearing. What is he doing there?
Mrs. Martingale
Nicholas Martingale
Petronella Martingale
Dinah Martingale
Benjamin Martingale
