Who is scathatch?

Answer 1

Scathatch is a mythological human that was once called "The Shadow" and "The Warrior Maid" and such...

She is also a character in Michael Scott's Book series, as an immortal vampire, "The Alchemyst: Secrets of the Immortal Nicholas Flamel"

She is a Celtic female Warrior, she taught women and men alike to fight in hand to hand combat and battle on horse back. Her sister was a leader of a horse back riding school. She is considered a Celtic Goddess now.