The Hothouse by the East River Muriel Spark
During World War II, Elsa and Paul were involved in secret propaganda work in England. It is now 1973 and they are living in New York. Elsa is convinced that a German ex-POW - and former lover - who has appeared in New York, may be planning to kill them. And what's more, her shadow is pointing in the wrong direction: to the East.
This is one of the 22 novels written by Muriel Spark in her lifetime. All are being published by Polygon in hardback Centenary Editions between November 2017 and September 2018.