User blog comment:Sir William Of Chalitton/Red Queen Mother Vs Balrog/@comment-16792910-20140413152548/@comment-16792910-20140414025028

There is a difference between being immune and being resistant to fire It says endurance to fire, not out right immune to it meaning the fire can still kill the Red Queen but not as quickly as a black queen, also the insides could be susceptible to fire and the Balrog's weapons are steel or whatever covered in fire