August 1937 saw the appearance of "Letters from Iceland" (which had been finished by the two authors in MacNeice's London home the previous year), and towards the end of the year a play called "Out of the Picture" was published and produced by the Group Theatre. Music was written for the production by Benjamin Britten, as he had done previously for "Agamemnon". In 1938, Faber and Faber published a second collection of poems, "The Earth Compels", the Oxford University Press published "Modern Poetry", and Nancy once again contributed illustrations to a book about London Zoo, called simply "Zoo".