Saviour John
Nothing says Eve of The Second Coming of Christ like a longish existential short story by a forgotten Swedish Nobel winner (repeat: not nepotism) about a delusional old urchin who lives and preaches as the saviour of man.
I don’t know where you can find this in print– Jesus knows, I’ll bet. I have it in a tattered dimestore paperback anthology called The Existential Mind, Documents and Fictions,