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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.