Judas

"Can't you see what its doing to you? You're dying! You're all dying!"
A former cultist 'purified' from her sins. In her eagerness to join the desert wanderers she ended up leaving her own kin to succumb to their vile god, Apakinti. Worshipping Apakinti alters your body significantly, which is why she covers those alterations with decor and glimmering valuables.

Cult info (taken from my den page):

The cultists - Apakinti's followers
Secluded from the protected oasis, the cultists are a dwindled group of mixed blooded lions, either exiled from the desert wanderers or found straying from their original prides. They worship and honor the 'dark King' known as Apakinti, the beast who lingers in the Realm of the Ruined. Cultists bring sacrifices to their god, attacking patrols and killing desert lions who approach their small territory. Apakinti guards its followers and ensures the overworld deities bring no harm to its providers. Cultists believe that if they serve Apakinti it will bring them fortune and safety once they eventually pass and are trapped in Apakinti's world, the Realm of the Ruined. No cultist has passed yet though- as they only popped up recently, so there is no way of knowing if Apakinti follows through with its end of the deal. The demonic God is unpredictable, and its plans are unknown.

Realm of the Ruined.
This lies below the secret Garden, it is an endless black pit filled with corrupted ghosts that pull you down endlessly, whispering and screeching until you become one of them.

Apakinti.
A powerful entity whose appearance is unknown, for anybody who looks at it goes blind. Apakinti is the vital "heart" of his realm, the Ruined, where it waits for new targets. It can be summoned by Allseers or other deities.
Those who have glimpsed it describe the deity as grotesque, dark scaled with uneven limbs and three heads. Though the same lions usually go/are insane by then, so resources aren't to reliable.