The Temple was built by the Knights of the Shield as a place to worship the Shield of the Hidden Lord and to carry out certain fiendish ceremonies.

A large natural cavern formed the basis of the Temple of the Hidden Lord, with the sides hewn into the required shape. The interior walls are constructed from well-cut granite blocks and the floor is covered by large slate tiles. The ceiling is hewn from the granite and is typically 8-feet to 10-feet high.