Down in the Dark of The Deep King’s Domain by Brian Suskind (12th-level characters)
Down in the depths of the world, among twisting natural caverns where bioluminescent fungi shine as motes of light in the darkness, lies the lair of the Deep King. It hunts the world below, feeding on the spiritual essence of its victims and dragging their bodies back to its lair. Many have fallen in an attempt to put an end to this fell alien intelligence; can the heroes succeed where so many others have failed?
This adventure features the cave sovereign and duskwilt from Tome of Beasts 3.
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