This peculiar dimension was formerly inhabited by [[Kassil]] before [[Cheshire Cat]] decided to wander in; the sudden presence of another lifeform in the pantemporal dimensional matrix caused it to collapse, expelling both present within it; CC was unharmed, not being a natural resident, while Kassil's many potential selves were expelled randomly across all the timelines he existed in. The one who ended up on the Island was a somewhat confused engineering of steam and clockwork, capable of creating clockwork creatures that assumed a life in and of themselves.((Such as [[Fish]], the clockwork flying fish he created for [[Skidge]].))

In theory, four-space still exists at the Planck Scale, but it is effectively out of the reach of even the wildest [[Mad Science]] or Improbable Effect.((We hope.))((Recent events suggest that it may not, in fact, be beyond reach, with Kassil's return to the Island and his cryptic comments about 'fixing' an accident.))