Caleston is the eastern-most city of the Northern Kingdom, located near the border between it and Elven lands.
The Elven Embassy to the Northern Kingdom is found here. Many of the guild training schools are here, such as the Fighters Guild and the training halls for the Northern Kingdom’s armies and rangers.
Thyckletray, the Lawful/White school of magic is here, it’s many wizard towers make an impressive sight.
During the war between the Northern Kingdom and Southron Empire, Caleston was the final city held by the rebels prior to Freilund entering the war. After the war, Caleston almost became the capital of the Kingdom, but was passed over in favor of Cyrene.