Before the appearance of Sylvan, the land on which the city stands was used as a Sentinel cemetery. Most of the graveyard had been washed into nonexistence when the night city appeared, all but one small stretch of land. Here the cemetery was untouched, for reasons yet to be understood. The Sentinels, known for their disfavoring views of Sylvan, have fenced the area and set up a guard watch to overlook what remains of their once sacred burial place. They have since earned "Ghostguard" as a nickname, although they are none too enthusiastic of it. The guard has its quarters in a small, insipid structure.