Thistledown, 18 PY

Dark Materials
There was trouble brewing with the Harbinger. Not only were there changes happening in the elemental caverns below the ruins of old Yanshi, but a new complex was discovered on the Singularity Caul. Inside, explorers found a wing full of elementals and another full of shadows. The Complex belonged to Aerbax, and it wasn't long before brave adventurers discovered his most powerful creations yet: the Prodigal Harbinger and Prodigal Shadow Child.