I always figured that Harry was a direct descendant of merlin. We know that Ebenezer's journals go back to merlin what if the journals are passed though a family but wizards being wizards no one realizes that they were all related. We don't know who taught eb what if it was an estranged parent. Ebenezer had to learn it from someone and acts like it's the only way to protect his family
I had a theory that Merlin was a descendant, maybe the son, of Odin, that Harry was their descendant, and Odin was the ultimate target of the bloodline curse.
I'm fairly certain there was a WoJ that torpedoed the idea that Harry was a descendant of Merlin.
I used to be able to recall all this stuff really well and cite to it, but I don't have or spend nearly as much time on Dresden Files stuff as I used to.
