Random House Children’s Books has acquired 15-year-old actress, dancer, and singer Bella Thorne ‘s teen book series,  AUTUMN FALLS , it was announced today by Beverly Horowitz , Vice President, Publisher of the Delacorte Press Young Readers Group. Executive Editor Wendy Loggia will edit the books. AUTUMN FALLS is the story of a 14-year-old girl whose high school life unexpectedly changes after an encounter with magic. Delacorte Press will publish the first novel in the multiple book series in hardcover in…