After leaving the Channel Islands, where the family had taken the lease of Herm, the smallest of the habitable islands, she spent the War years with the Prince in Germany, where he commanded a hospital train for the Silesian Order of Malta. Here she kept a diary, describing life in Berlin and at the family estate of Krieblowitz in Silesia, from the point of view of an English exile among the deeply conservative Prussian nobility. This became the basis for her account of the war published as Princess Blucher, English Wife in Berlin: a private memoir of events, politics and daily life in Germany throughout the War and the social revolution of 1918. The journal remains a well-known source of information on life in Germany during World War I. During the cold winter of 1916/1917 she noted the shortages of fuel and food in Berlin which caused public morale, especially of the poorest, to plummet. Also described are the last weeks of the German Empire, with the decline of the old order, the fall of the monarchy, and the appalling social conditions that led to Spartacist uprisings and the German Revolution as the country became a failed state:
There is intense cold here, such as has not been known for more than half a century. There are shivering throngs of hungry care-worn people picking their way through snowy streets... We are all gaunt and bony now, and have dark shadows around our eyes. Our thoughts are chiefly taken up with wondering what our next meal will be, and dreaming of the good things that once existed.
Her memoirs were translated into French and German and reprinted many times, becoming a minor classic.
Princesse Blücher, Une anglaise à Berlin: notes intimes de la Princesse Blücher sur les évènements, la politique et la vie quotidienne en Allemagne au cours de la guerre et de la révolution sociale en 1918
Evelyn Fürstin Blücher von Wahlstatt, Tagebuch mit einem Vorwort v. Gebhart Fürst Blücher von Wahlstatt
With Maj. Desmond Chapman-Huston, she edited her husband's Memoirs of Prince Blücher, describing his life and family, with an account of his great ancestor, Marshal Gebhard Leberecht von Blücher. In later life, Princess Blücher returned to England, where she lived near the Brompton Oratory in Kensington. She died in Worthing in 1960 and is buried, next to her husband, in the cemetery of St Bartholomew's Church, Rainhill, Lancashire.
