“This book, although mysterious and magical, is inspired by different aspects of my personal life, which I hold very near and dear to my heart," said Thorne. "I wanted to write a book that teens could relate to, but with a little bit of magic."
Thorne is best known for playing dancer Cece Jones on Disney Channel's Shake It Up, which is in its third season. She also has appeared on Big Love and My Own Worst Enemy.
"TTYLXOX," her 2012 debut single, sold more than 400,000 copies and appeared on the Billboard 100 chart.
Beverly Horowitz, vice president and publisher of the Delacorte Press Young Readers Group, praised Thorne's "authentic and passionate voice," promising that young female readers "will relate to Bella and her characters.”
Elise Allen will join Thorne as co-author. Martin co-authored the Elixir series with Hilary Duff and soloed on Populazzi. Editor Wendy Loggia, who will oversee the books for RH's Delacorte imprint, negotiated the deal for the publisher. Thorne was repped by Matthew Elblonk (DeFiore & Company), who also handled Lauren Conrad's successful book deals.