Set during the golden age of Baghdad, Assassin’s Creed Mirage is a return to the series’ stealth-focused combat roots. It continues the story of Valhalla’s Basim Ibn Ishaq on his journey to join the Hidden Ones, a precursor to the Assassin Brotherhood. Set during the golden age of Baghdad, Assassin’s Creed Mirage is a return to the series’ stealth-focused combat roots. It continues the story of Valhalla’s Basim Ibn Ishaq on his journey to join the Hidden Ones, a precursor to the Assassin Brotherhood.