16 February 2012
Of all the 7 parallel worlds, ERA, our earth is the only one that has no connection with and no knowledge of its parallel counterparts.
Traveling to another world from or even attempting to reach ERA is also the most difficult , due to unknown limitations.
Crossings can only be made when a Lunar or Solar eclipse is occuring. Entering ERA is restricted to during Lunar Eclipses, while leaving can only happen during Solar Eclipses.
ERA - Fact: Transdimensional Travel • Opuss № I