Unfinished Portrait is a semi-autobiographical novel written by Agatha Christie and first published in the UK by Collins in March 1934 and in the US by Doubleday later in the same year. The British edition retailed for seven shillings and sixpence (7/6) and the US edition at $2.00. It is the second of six novels Christie wrote under the pen name Mary Westmacott. Source: Wikipedia (en)