Complex sentence: There he finds apocalyptic writings on the wall and impresses another Assassin Brutte with his fighting skills, and invites Arno into the Brotherhood when they escape during the Storming of the Bastille.
Split into simpler sentences: There he finds apocalyptic writings on the wall and impresses another Assassin Brutte with his fighting skills. Brutte invites Arno into the Brotherhood when they escape during the Storming of the Bastille.