Author, Writer · 19 titles
The Secret of Platform 13Book· 1994Author
A Countess Below StairsBook· 1981Author
Which Witch?Book· 1979Author
Uma Família de FantasmasFilm· 2011Writer
Monster MissionBook· 1999Author
Island of the AuntsBook· 1999Author
The Morning GiftBook· 1993Author
The Dragonfly PoolBook· 2008Author
Dial-a-GhostBook· 1996Author
The haunting of Hiram C. HopgoodBook· 1987Author
The Great Ghost RescueBook· 1975Author
The abominablesBook· 2012Author