Later, however, he made contact with the republicans of the Société des Droits de l'Homme (Society for the Rights of Man), and with two of its members, Pierre Morey and Pierre Pépin, he contrived an “infernal machine” of 25 guns that could be discharged simultaneously. They fired the device at Louis-Philippe as he passed Fieschi's lodging on the Boulevard du Temple on his way to a review of the troops. The king and his sons escaped injury, but 18 persons were killed and many others wounded.