Of the Spawn of Cthulhu, only Ythogtha lies prisoned in regions contiguous to sunken R’lyeh, for Yhe was once a province of Mu, and R’lyeh is not far off the submerged shores of that riven, drowned continent; and Yhe and R’lyeh are close nigh unto each other, along dimensions not numbered among the three we know.
Cthulhu background, Yhe, Ythogtha, R'lyeh
