Hark

Hark is a goblin male, leader of the band of goblins in the Dripping Caves

One of the goblins interrogated in Nightstone revealed that villagers escaping from the town came to their cave (he called it the Dripping Caves) when the city was attacked by what seemed to be a flying castle in the clouds.

Hark sent a handful of goblins to seize Nightstone in their absence.

The party struck a bargain with Hark to clear out the "Black Thing" in the water supply in exchange for freeing the Villagers from Nightstone. The party defeated the Black Pudding that was occupying the water supply stream cave, and has not yet reported back to Hark.