21. It can be seen on the Marsworth to Long Marston road, next to the old guard room . 22. A barrack block on the right was built in the 18th century and a 19th-century guard room . 23. During the American Civil War, Union troops used the Library in Academic Hall as a guard room . 24. The basement included a guard room ( holding cell ) for prisoners, and the Mayor of Stafford's office. 25. The fort was made defensively complex with guard rooms and barbicans, which was a novelty at that time. 26. The British built a small guard room in front of the tower, but this is now in ruins. 27. Shortly after I lay down in the guard room , there was a loud thud that made the windows rattle. 28. The gate burnt down in 1886 due to a fire started by a tipped lamp in the guard room . 29. The base of a garderobe demonstrates that second storey would have provided space for habitation, probably a guard room . 30. This gateway measure and has steps and a ramp leading up to the main entrance which has two guard rooms .