The Heir is always the oldest family member alive, activated on their 27th birthday. The Heir is said to be the only one who can actually fire the Peacemaker. When an Heir dies, all Revenants killed by the former heir will resurrect again.
The Heir so far have been (including years):
- Wyatt (-1929)
- Josiah (sometime between 1929 and 1967)
- Edwin (1967-1968)
- Ward (1993-2000)
- Wynonna (2016-2018)
- Willa (2016-2016: was briefly one of two Heirs along with her sister Wynonna before her death)
The cursed area of land, partially framed by the splitting of the Ghost River into two, that imprisons the resurrected outlaws killed by Wyatt Earp. Should a Revenant cross the boundary line, they experience Hell on Earth.
Wyatt killed Constance and Bulshar Clootie's sons, so Bulshar cursed Wyatt and his decendents. Due to the curse being created by her husband, Constance has detailed knowledge about the curse and the Ghost River Triangle. She also knows spells to get around the curse.