" several of our company told of ghosts, one, how a man had been slain on the way to the wars, but had not known it, his ghost going on, thinking himself alive, performing deeds of great valor, even returning home in triumph where he bought lands, begot sons, and lived in contentment for many years before discovering one day, by chance, that he was already dead. "

― H.P. Lovecraft , The Cthulhu Mythos Megapack: 40 Modern and Classic Lovecraftian Stories