Dr Jonathan Clark from FAS Heritage explained that they could see two windows on the outside of the keep, but they did not could be found from the interior of the castle. Although they believed the windows went into passageways that had been filled up with rubble, the archaeologists decided to explore them.

Dr Clark says, "We were surprised that when we carefully unblocked the windows and peered in, and through the dim light of a torch and the mists of dust and trapped for centuries, to find a perfectly preserved medieval chamber, complete with the remains of the guarderobe (toilet) including the remains of the original toilet seat and the original entrance doorway for the medieval hall."

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