He fled with his wife, daughter, and granddaughter to a small village near Toulouse where they lived in hiding for the remainder of the war. It was there (and despite his failing eyesight) that Hauser completed his final book, a study of the economic thought of Richelieu. With the liberation of France in 1944 Hauser and his family moved to Montpellier, hoping to return to Paris once an apartment could be found.
He escaped with his wife, daughter, and granddaughter to a small village near Toulouse where they resided in secret until the end of the war. It was there (and despite his deteriorating eyesight) that Hauser finished his last book, an analysis of Richelieu's economic ideas. With France's liberation in 1944, Hauser and his family relocated to Montpellier, with the intention of returning to Paris once a suitable apartment became available.