A Guide to the Power of Daedric Flames, Volume 3, by Kalsius Malik The strange blue flames of Coldharbour not only act as a light source, but the Daedra of this realm have also found a way to charge and run their bizarre Daedric machines with the stuff. Similar to how we use normal fire to keep warm and cook food back in Nirn, this strange blue flame—which is icy to the touch—will charge various Daedric devices and incantations with power. I believe they use it as a fuel to bring their magical creations to life.