* "The Secret Diary of Jane Eyre" by Stephanie Thornton: This book tells the story of Jane's childhood from her own perspective, focusing on her experiences at Gateshead and Lowood.
* "Jane Eyre: The Early Years" by Sarah Waters: This novel focuses on Jane's time at Gateshead before she is sent to Lowood, exploring her relationship with her aunt and cousins.
* "Jane Eyre: A Novel of the Years Before" by Anne Perry: This book tells the story of Jane's parents and the circumstances that led to their deaths, as well as the early days of her childhood.
It's important to note that these are all unofficial prequels and do not have the same weight as a work by Brontë herself. However, they can be enjoyable reads for fans of the novel who want to learn more about Jane Eyre's backstory.
It's also worth mentioning that the novel *Wide Sargasso Sea* by Jean Rhys is often considered a prequel to *Jane Eyre*, although it's not technically a prequel in the traditional sense. This book tells the story of Antoinette Cosway, the Creole woman who becomes Bertha Mason, Rochester's wife in *Jane Eyre*. While it doesn't directly address Jane Eyre's childhood, it explores the events leading up to Bertha's tragic fate and provides a different perspective on the characters and themes in *Jane Eyre*.