Ellie bid farewell to her childhood friend Prince Alexander eight years ago and never thought their paths would ever cross again. After all, the two of them lived in separate worlds. He was a prince and she was a humble servant. Surely it was better for her to leave their old friendship in the past and accept her dreary fate.
But when she impulsively dons a mask to catch a better glimpse of a ball, their worlds collide, and a mystery at the palace soon pulls them even closer together. Drawn into the intrigue, Ellie must find the traitor lurking in the castle's shadows before all hope of peace is lost—and before she completely loses her heart.