Jillies

'The Jillies' is the name given to themselves by the Jillions family. The series starts on a holiday to Norfolk, where the Jillies meet the Standing brothers. After a shaky start they become firm friends. Subsequent books explore different locations, including Austria. The Luck of Sallowby is a particularly interesting story, in that it not only explores a real location, it also documents the real events associated with the great Fen floods of 1947.