Blood of the Hunters, livre audio

It's May 2055 and Paris-Brooke Seabrook is hoping that Theodore King-Lake will invite her to the school Prom, but at a party at Theodore's home Amberton Hall, Theodore's older brother Rufus is shot. Theodore, Paris-Brooke and Theodore's friend Benedict Templeton-Knight are taken hostage. To secure their release, Rufus must be saved by Paris's father Doctor Thomas Seabrook and his friend Doctor Samuel March-Banks.
However, Amberton Hall holds many secrets. Just who is Lady Annabella Clarence, and what does she have to do with the Hunter family history?