Editing Survey Island (section)

==The Caverns==
Beneath the plateaus was a separate underground complex.  Underneath the lower plateau was a pool of water floating above a volcanic vent.  At one time, this pool was open to the air, but Gehn had long since built over it.  A small golden elevator could transport one through the pool and into the volcanic vent beneath.  

[[File:Gehn_wahrk_room.png|thumb|Gehn's throne room.]]

The vent connected to a cave which led to a massive cavern that had a window into the upper plateau's pond.  Here Gehn built a [[Gehn's throne|throne]] atop a large stalagmite, where he could watch the Wahrks in the lake, or surveil his subjects.  Gehn's throne had a couple different viewing devices that allowed him to monitor [[Catherine]] in her cell on [[Prison Island]], and the [[Rivenese]] at the lake on [[Jungle Island]].  He could also turn on and off a series of colored lights in the pond, which would summon his pet wahrks.

[[Gehn]] used equipment on this island to track Riven's slow breakup, and to keep an eye on his subjects living on [[Jungle Island]].  Two [[maglev]] tracks connected the island to its neighbors; one led to [[Jungle Island]] and the other to [[Book Assembly Island]].