Shadows and Fire
Vritra, The Lamia
A shape-shifting fey creature composed of a swarm of beetles.
The Lamia known as “Vritra” freed Moloch from its magical chains. When the PCs, equipped with a powerful artifact, came to tackle the Demon, the Lamia unexpectedly sided with them, completing the ritual to remove the Earth Shard from Moloch, weakening it.
She told the PCs she needs the powerful artifact for “revenge”; but revealed that the revenge is not against the PCs, or even against some being of the World.
In the aftermath of the battle, she disappeared with the Shard. Her whereabouts are unknown.