During World War II, he resided in Nice, where he prepared a novel (Souvenirs du lieutenant-colonel de Maumort) which remained unfinished at his death.
Selama Perang Dunia II ia tinggal di Nice, Prancis Selatan, di mana ia mempersiapkan sebuah novel yang tetap tak terselesaikan, Souvenirs du lieutenant-colonel de Maumort.