Related
Page
3
Obtain the Green Gem from the King of The Castle Rondorin.
Page
4
Obtain the Blue Gem from the King in The Black Dragon's Castle.
Continent
Lands of the Dark Unknown
Notes
Grants Charisma
The Southern Sign Post is the only landmark in the game that's not on an island, though this fact doesn't really help you since you need a Raft, Frigate, or Air Car to reach the Continent it's on anyway. It can be found on a peninsula extending from the west coast of the Lands of the Dark Unknown. The Sign Post is directly to the north.