Paris Abilities Locations
There’s only one special ability to be found in Paris, located in the Plague District in the south of the city.
Plague District - Plague of Rats
You’ll find this Book of Knowledge beneath a ruined tower in the Plague District. To access it, climb the tower from the eastern side until you find an opening in the form of a window, as shown below. Climb through and then use Incendiary Powder Trap to destroy the destructible stone floor. Once you’re at the bottom, destroy the wooden barrier blocking the way to the sewer grate, then attack the rats until they all run down the grate. You can then loot the Book of Knowledge in peace, granting the Plague of Rats ability.