Narrenturm

From Witcher Wiki

Narrenturm is a 2002 novel written by Andrzej Sapkowski. It tells the story of Reinmar of Bielawa, also called Reynevan de Bielau. The action takes place in Silesia in 1425, at the time of the Hussite Wars.

The word Narrenturm means The Tower of Fools, a tower in which, in Middle Ages, people suffering from rare and mental diseases were isolated.