|Locations of interest|
|Journal-||Riven (game)/Atrus's journal|
|First appearance||Riven (game)|
Prison Island is the smallest of the five islands of Riven.
It was located so far to the northeast that it couldn't be seen from the other islands.
Gehn cut down the Great Tree to create paper for linking books, after Atrus trapped him on Riven. Over time, the instability of Riven caused the islet to drift far away. The Moiety had no information about what was on the island.
Gehn initially used the structure as his private office.Template:Fact