 He was a Resistance fighter under the name of Captaine Goderville (the village where his father was from).Biographer Jérôme Garcin writes that Prévost fought with "a gun in his hand and a knife in his pocket and, in his backpack, the unfinished manuscript of his "Beaudelaire" together with a portable typewriter".He was killed in a German ambush at the Pont Charvin, in Sassenage, on 1 August 1944.