Shy but interesting look at the history of monitoring
Close your eyes and breathe slowly, can you already feel the coolness on the tips of your boots? On the tense phalanges of your hands? The first step is right in front of you. It is a spiral staircase armed with worn ashlars under old voussoirs. The dim light of a chandelier accompanies you. What are you waiting for? Go up! The forbidden book awaits you in the last of the stays, where you will finally find out something about the history of monitoring.