Writers Joanna Trollope and Sabrina Mahfouz talk about their favourite books with Harriett Gilbert. Joanna's choice is a historical novel set in 1912 - The Gate of Angels by Penelope Fitzgerald. Sabrina's pick is The City Always Wins, a novel set in the aftermath of the Egyptian revolution by writer and film-maker Omar Robert Hamilton. Harriett argues her case for Terms and Conditions by Ysena Maxtone Graham, chronicling life in girls' boarding schools from 1939 to 1979