Mykdl'dy (Pronounced Mc-dil-ty), it is a planet that is tidally locked with its sun. One side always faces the sun, while the other does not. The light side is molten hot at 3,600ºF and the dark side is -320ºF with an inhabitable tempered zone between the two.
A small group of white Necrofriggian's live there because neither the hot or cold climate can affect them. They also guard the first quarter of the Map of Infinity in the temple, which is on the tempered zone. The temple has a series of traps, preventing people from getting the first quarter of the Map of Infinity, including its Two Headed Dragon.