The seat of Lord Warden Faren Markelhay, Moonstone Keep is an old castle that sits atop a steep-sided hill overlooking the town. The outer bailey includes barracks housing up to sixty Fallcrest guards. At any given time about twenty or so are off-duty. Other buildings in the courtyard include a stable, an armoury, a chapel, a smithy, and several storehouses. The keep is the large D-shaped building at the north end of the castle.
Moonstone Keep is location 8 on the map of Fallcrest.