He dropped seven of his names because their initials spelled out PINHEAD, from his birth name of Oscar Zoroaster Phadrig Isaac Norman Henkel Emmannuel Ambroise Diggs. He saves a central character from the Mangaboos, and later returns with her to the 
He dropped seven of his names because their initials spelled out PINHEAD, from his birth name of Oscar Zoroaster Phadrig Isaac Norman Henkel Emmannuel Ambroise Diggs. He saves a central character from the Mangaboos, and later returns with her to the land he once ruled, where he is taken on as a witch's apprentice. He is then decreed to be only the third person in the land who can perform magic after Glinda and Ozma. FTP, name this magician, the namesake of a series of books by L. Frank Baum, who asks you to pay no attention to the man behind the curtain.
He dropped seven of his names because their initials spelled out PINHEAD, from his birth name of Oscar Zoroaster Phadrig Isaac Norman Henkel
The Wizard of Oz [prompt on The Wizard]