Within this pocket-dimension, are an unknown species, of brooding, amphibious creatures that float around the pocket-dimension on huge eggs. We also know that the Red Jar of Calythos was found, sometime in the 30th century floating around inside the pocket-dimension.
Beyond that, not much is known about this Inter-Dimensional Limbo.
- Unidentifed, Brooding, Amphibious Creatures
- Justice League of America, #147 (October 1977)