Narrenturm is a novel written by the Polish fantasy writer Andrzej Sapkowski. It tells the story of Reinmar of Bielawa, also called Reynevan von Bielau. The action takes place in Silesia in 1425, at the time of the Hussite Wars.
The setting is mostly historical, with some historical characters and descriptions of particular locations. Fantasy elements include occasional magical feats, artifacts, and non-human characters. The german word Narrenturm means The Tower of Fools, a tower in which, in Middle Ages, people suffering from rare and mental diseases were isolated.
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