Melville Castle, a grand estate nestled in the rolling hills of Midlothian, is home to a rather intriguing ghost story. The castle has been associated with the spirit of a female apparition, believed to be either Elizabeth Rennie, a former owner of the estate, or Mary, Queen of Scots, a monarch with a rich and complex history. According to reports, the ghost has been seen walking through a wall where a sealed door once stood, and also making her way to the library bar. The exact nature of her presence remains a mystery, but her appearances have been documented over the years.

The history of Melville Castle dates back to the 15th century, with various owners and occupants throughout the centuries. Elizabeth Rennie's family owned the castle many centuries ago, which may explain her connection to the estate. On the other hand, Mary, Queen of Scots, has a well-documented history in Scotland, with numerous sightings and encounters reported at various locations throughout the country. While the true identity of the ghost remains unclear, it is evident that Melville Castle holds a significant place in the history of both Elizabeth Rennie and Mary, Queen of Scots.