 Unlike the school stories for which Forest is best known, "Peter's Room" is set entirely at (or near) the family's home.The Marlow family, less their father and Giles, who are away at sea, spend their first Christmas at Trennels, the country estate they inherited following the death of their cousin Jon in an aeroplane accident.Eldest sister Kay is down from Oxford and spends most of her time closeted in the house's library and Rowan is preoccupied with her new role as farm manager.