Rose McQuinn is invited to stay with her friend Olive, who has a small cottage on the Balmoral Estate. As Rose travels on the train with her trusty dog Vane and her niece Mabel, she wonders what exciting adventures await them at the Royal household. Little does she realise that within just 48 hours of their arrival, death will have visited the great castle . can Rose find out what happened and prevent any more bloodshed?