Wood Between the Worlds

The Wood Between the Worlds was the name given to a common access portal allowing magical travel between many different worlds,, Earth, and Narnia being the only ones currently known about. It had the form of a quiet forest dotted with many wide pools of water. Each pool was a portal to a world, and jumping in transports a person to that world. This was the first means of access to Narnia. It was used by and  to go first to Charn, then return from Charn to Earth with Queen, then take Jadis, with , , and , to Narnia.

The Wood
The Wood itself is not a 'world' in the sense of Charn, Earth, or Narnia. It seems to be uninhabited, which is understandable since spending time there seems to cause amnesia, lack of ageing, lack of hunger and perhaps sleepiness. Digory and Polly nearly lost all memory of who they were in a short time there. Perhaps this effect was deliberately added when the Wood was created, so it would only be used as a portal, and not be captured and held by any one race. Something about the environment was toxic to Jadis, who lost her strength and vitality while there, and as hinted was somewhat familiar with the place’s existence. Though the Wood is not home to any native creatures, it is presumably still inhabited by the guinea pigs used by Uncle Andrew in his experiments with the rings.