Helena Mayer is an author that has written many children's books. For Phineas and Ferb, she has written Wild Surprise, a chapter book novelization of the episodes "Candace Loses Her Head" and "Mom's Birthday".

The following is a summary of the properties she has written books for. Not all of them are specifically "junior novelizations".

Junior novelizations of Disney movies

  • Bedtime Stories

Junior novelizations of other movies

  • Tooth Fairy (Dwayne Johnson movie)

Independent novels and books

  • Lisa Frank: A Star is Born
  • The fortifications of Cartagena de Indias: Strategy and history
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