Gillswood was a forest on Bramfield New Town's border. It was one of the witchings from which Zim captured humans to be inhabited by the minds of his clients.
Inhabiting the body of DCI Harry Finch, Hans Vogel lured Stephanie Andrews to Gillswood by claiming that the missing Peter Andrews had been found there. Hugo Martinez had actually taken over Peter's body and Steph was sucked into a portal, after which her body was taken over by Silvia Martinez. (AUDIO: The Hidden Realm [+]Loading...["The Hidden Realm (audio story)"])