Chillingham Castle is said to be Ione of the most Haunted Castle in Britain. The most famous shadow of the castle is the "blue boy", which is frightening in a pink room in the castle. Guests apparently reported seeing flashing blue and a blue "halo" of light above their beds.Chillingham Castle is located in the village of Chillingham in Northumberland, near the border between England and Scotland. The castle was built in a quadrangle with a large interior courtyard. There are many parts of the castle open to visitors.