Agathe's arrest shocks the Palace: Montespan and Gaston keep a low profile as one by one the royal guards arrest every noble person implicated in the poison scandal. Humiliated by her fall from grace, a desperate Montespan prepares for revenge: if she cannot have Louis, then Louis must disappear. But the trap closes without remorse. Thomas realises that he has been discovered and prepares to escape with Sophie. Philippe almost dies trying to stop them: but the Chevalier finally gets his vengeance and saves the life of his beloved. Versailles is finally rid of its evil. As the witch is burned at the stake and commands the people to rise up against their tyrannical King, Louis remains unruffled. Thanks to Maintenon, he has found his strength once again.