Marble Island Passage

From Marble Island a building stands, which has a tunnel leading to the Lost Lands.

From the Lost Lands, find the mouth of a cave, which sits West of the Terathan Keep. The cave leads into the mountains, and then on to Britannia

From Britannia and on Marble Island, sits a stone building. Inside a traveler will find stairs, leading to a basement and a tunnel. Follow it through to find the Lost Lands. The isle itself is located North of Trinsic, and just North of the Fens of the Dead.