Eu perguntei ao meu bom amigo Piers Anthony essa pergunta. Tenho certeza de que ele não se importaria de eu compartilhar sua resposta.
"Jody-Lynn Nye wrote two Xanth novels with my permission, but they are not part of the official series. I was not involved in their writing. The other was Ghost of a Chance. She and I collaborated on The Visual Guide to Xanth".
Via Email - Emphasis mine