A Burnt-Out Case by Graham Greene

When Querry, a world-famous architect, finds he no longer enjoys life or takes pleasure in art he sets off on a voyage. Arriving anonymously at a leper colony in the Congo, he is diagnosed as the mental equivalent of a 'burnt-out case', a leper mutilated by disease and amputation. Querry slowly moves towards a cure, his mind getting clearer as he works for the colony. However, in the heat of the tropics, no relationship with a married woman, however blameless, will ever be taken as innocent.