Seymore, Leornian, and Bonnie Duhg descend at Derncroft from Threave Castle and camp for the night at Carlinwark Loch. The trio travels by coach along the road to Drumfries and on to Lincloudon, at the confluence of Cludin Water and the River Nith. At the abandoned Lincloudon Abbey, Seymore and Leornian meet the last survivor of the thriving lytfolc community that once lived there. In the unexpected largess of the lytfolc antiquities of Lincloudon, Seymore discovers an old map that will eventually change his life. After a day's journey up the Nith valley, Seymore and Leornian are feted by the lytfolc lairds of the Clanns of Marr. By gondola, Seymore tours the greatfolc art collection for which Drumlanrig is famous, as well as its galleries of lytfolc masterworks. Far below Drumlanrig, Seymore travels the Struthruhd and descends the Kruiklinn Locks that open onto the Sea of the Cave. After a day of touring the antiquities of the ruined city, an alarm in the middle of the night rouses Seymore to a massive cave in. He soon finds himself at the center of rescue efforts and puts his own life on the line to search for survivors under the Tower of the Moon.