A Dark Past
The Saint-Martin canal was the most famous of the three. The underground canal flowed from the Place de Bastille to the Bassin de l’Arsenal. It had been learned that the Bassin de l’Arsenal was a well-known place where a prisoner was attacked in the French Revolution.
The authorities knew of the canal’s dark and bloody past, but that had been centuries ago. They had no idea what awaited them at the bottom of the cloudy water.