“Secret realm beyond Time”
From Jenny Everywhere Wiki
When enough of the Shifter's mental network got “worn out”, over millennia, a significant number of her incarnations automatically “zapped off to”, in Jenny's own rods, a “secret realm beyond Time”, where they remained for a few weeks, during which their shifting powers were rejuvenated and their mental link resynched. After returning to the Multiverse, even Jenny herself did not actually remember the experience in any detail. As she once explained, “some elements of me are secret even to, well, me!”. (PROSE: The Disappearance of Jenny Everywhere)