Ry'leh

was a desolate planet surrounded by a frozen atmospheric shell. A being claiming to be the Great Old One Azathoth was imprisoned there in the city of Kadath in the Cold Wastes. A dimensional gateway could be opened on the Plain of Leng connecting the planet to Earth. (PROSE: All-Consuming Fire, AUDIO: All-Consuming Fire)
== Behind the scenes ==
R'lyeh is the underwater city in the work of H. P. Lovecraft within the vaults of which Cthulhu, one of the few earthbound Great Old Ones, sleeps.
Category:Planets
Category:Planets visited by the Seventh Doctor
Category:Prison planets
Category:Planets visited by Bernice Summerfield