The world known to most Wigglies (natives) extends out about 40 or so miles, that is all they care to know for the troubles within this enclave is trouble enough… yet for those bold or of greed there lies a great world beyond.

Bordered by the on the west by the warm and inviting Sparkling Sea to the frigid Arizbond Sea of the eastern coasts. It stretches from the Wizzardwall mountains to the north of Ranke to the Azehur deasert northwest to the empire of Caronne to the west. South of Caronne lay the great empire of Ilsig bordered on its east and south by the World Spine Mountains. To the east of the Spines is the Grey Wastes which lies south of Ranke and north of our little town of Sanctuary.

After that, take a look at your wiki. There is some more helpful info there.

Thieves World Campaign