Khadidra

Khadidra is a small planet in the Mandella system. Its surface is mostly ice with an average temperature of -19 degrees Celsius. Windstorms also batter the rocky landscape. The population of Khadidra lives underground in a vast network of caves that are habitable due to the molten core of the planet keeping the caves warmer than the surface and a large water system that constantly flows because of the melting ice just below the surface.