Jim Butcher - Codex Alera

Codex Alera is a fantasy book series by Jim Butcher. The series chronicles the coming-of-age of a young man named Tavi in the realm of Alera, an empire similar to Rome, on the world of Carna. Every Aleran has some degree of command over elemental forces or spirits called furies, save for Tavi, who is considered unusual for his lack of one. As the aging First Lord struggles to maintain his hold on a realm on the brink of civil war, Tavi must use all of his intelligence to save Alera.

Alera is part of a large continent that is inhabited by the Icemen to the north. They are connected to another large continent held by the Marat via a land bridge, which is the location of the Calderon Valley. The Canim reside across the ocean to the west, staging regular, bloody raids on coastal settlements. A map of the realm, illustrated by fan Priscilla Spencer, was published in First Lord's Fury.