Caverns of Frigid Death

Publisher's blurb: Frigid wastes give way as you find yourself at the entrance into the depths of a cavernous icy hollow. Passages fork off the main tunnel, one leading to a small chamber which then curves to connect to a small cavern full of ice and rubble. A small pool of frozen water can be found under a small overhang as you travel deeper into the cave system, It’s glass like surface perfectly still. The passage curves around and meets with a large cavern where above a rocky structure sits piles of blue crystals.