Spirit

Spirit is the ghost of monk inhabiting the Spirit Realm that coincides with the Chaos Temple in the Wilderness. You must use an upgraded Jannica's ring from the Spirit of Summer and End of Summer quests to access this part of the Spirit Realm.

If you wear an Amulet of Ghostspeak, you can talk to him and understand what he says. He has been a ghost so long that he is unclear as to what his name was, and he responds to questions in a confusing manner. If you know something about the history of Gielinor, you realize he is talking about the God Wars and alluding to how Guthix, whom he calls "green", ended them.