The highly anticipated sequel to the bestselling mystery-thriller Serafina and the Black Cloak is set for nationwide release on July 12. Serafina and the Twisted Staff, from author Robert Beatty and publisher Disney Hyperion, continues the adventures of an unusual 12-year-old girl who lives hidden away in the basement of the grand Biltmore Estate in North Carolina during the 1890s. The second in a series of three books written for both adults and children (ages 8 and up), Twisted Staff…