In my novels, there are two dragons who enter hosts through the Stone of Destiny. Both dragon spirits with pale skin and hosts who appear as the red haired Ishtar and a white haired Queen Lilith!
The Tale of 2 Dragons
“There is a great STONE below the lake,”
Merlin said in a whisper.
“Two dragons sleep there – one red and one white.
One day they will come out from under the stone
and meet on the waters of the lake in a fearful battle.
In the white dragon is the SOUL of your strongest enemy –
In the red dragon you may see the reflection of yourself.”
King Arthur and His Knights , based on Sir Thomas Malor’s Morte d’Arthur, 1927, P. 6