Dragon's Flame, Magical?

[The Might]

Indeed, I now realise I was quite hasty there myself.

Especially after finding this (I was actually looking for something to support my idea):

"But the land of Merlin and Arthur was better than these, and best of all the nameless North of Sigurd of the Volsungs, and the prince of all dragons. Such lands were pre-eminently desirable. I never imagined that the dragon was of the same order as the horse. And that was not solely because I saw horses daily, but never even the footprint of a worm. The dragon had the trade-mark Of Fairie written upon him. In whatever world he had his being it was an Other-world. Fantasy, the making or glimpsing of Other-worlds, was a profound desire. I desired dragons with a profound desire."

So seems that fantasy did play a great part in this.
Still, I am trying to find some explanations.