https://docs.google.com/document/d/1RfA3evYulYL2F-3G-RZmgUqjejens8RLvOa2mrfrsAM/...use this walkthrough
you use it like an item and then you can go to different maps, move around the map (using arrow keys) and press yes to go to a map
you go the the item and press enter?
if you leave the light forest before seeing it you fail it