Young Katerina Grey, the younger sister of Jane, the Queen of England known in history as the “Nine Days’ Queen,” expects only good from life: she is wealthy, incredibly beautiful, and passionately in love with her fiancé, who also eagerly awaits their wedding day. But soon the girl realizes that the Tudor blood running in her veins is a true curse. She accidentally finds the diary of Katerina Plantagenet, an illegitimate daughter of the infamous Richard III, and learns that her namesake, who lived a century before her, desperately tried to uncover one of the most terrifying secrets of the Tower of London. Then Katerina Grey begins her own investigation—without realizing that soon she too will find herself behind the unassailable walls of this grim prison…