Sacrificial altar

A colossal, emaciated goblin face carved into the ice on the far wall. Its eyes seem to follow visitors around the room. This is Frozzt, the god and ancestor to all frostlings. A long, flat stone covered in frozen blood, supported by pillars of ice into which are set the grimacing skulls of animals and humanoids. Anyone who hurts a frostling in this room suffers Frozzt's curse: cold all the time, sniffle and sneeze loudly at the worst possible moment, disliked by all creatures associated with ice, snow and cold (getting rid of a curse is a tricky and expensive process; you can make this an interesting character goal).