t is 1946 and Regina Robichard is a rarity as a young, black civil rights lawyer. Working in New York for Thurgood Marshall, Reggie stumbles across a letter asking her boss to investigate the case of a black soldier whose body has been found floating in the river in Mississippi.
The letter is signed by M. P. Calhoun, the reclusive author of The Secret of Magic, one of the most banned books in the country; a book Reggie loved as a child, about the friendship amongst three children, one black and two white, a magical forest - and a murder.
Reggie has just three weeks in the South to investigate. But once down in Mississippi, amid the intoxicating landscape of cotton fields and lush plantations, Reggie not only finds herself further away from New York than she had ever imagined, but walking directly into M. P. Calhoun's book, a place where more than one type of justice exists.