I think the story line is every bit as good as Harry Potter's, but hardly anyone knows its author, Diana Wynne Jones or her excellent series. And that part is sad. BTW The Chrestomanci Quartet, is: Charmed Life - Witch Week -The Magicians of Caprona -The Lives of Christopher Chant.
As TOM read the Charmed Life tale, to me, it sounded over and over again, like HE was describing HIS ownself, rather than the character of Chrestomanci. Pure ... magic.
"And as for Tom Baker, well, I'll always be the Doctor,
won't I?" TOM BAKER