Everwatcher
A deity very few worship, those who do are normally associated with the occult. The Everwatcher is the source of your mark, the curse that causes the vanishing. They are present in your entire life, though absent from your existence. They may call on you at a moments notice or leave you be until the end of your days. They are cruel and uncaring to your plights, while their motives are purely for the benefit of Primalus.
Religion
Those who follow the Everwatcher willingly are those who have lost touch with society, those who have been outcast from their communities, and those who wish the Everwatcher would mark them and take them from their current station to fulfill a higher promise. But the Everwatcher selects all of their agents at their birth, with a mark born into their flesh, a crescent with a dot in the middle.