​​​​​​​Furies of Calderon kicks off the Codex Alera series which is an excellent 6 book series written by Jim Butcher. The series follows the life of Tavi, a young boy with no fury-crafting skills, in a world where everyone has access to elemental furies and their magical abilities. The fantasy world of Alera is very interesting and the magic system hooks you in quickly by creating a diverse set of circumstances. Furies are elemental beings (Air, Earth, Fire, Metal, Water or Wood) capable of helping the person who summons them in various ways from small everyday tasks through fighting in combat. As examples, earth furies help lift heavy loads and wind furies help their summoner travel faster. Alerans start to manifest their personal furies as children and by the time they are teenagers they are capable of summoning one or more furies to aid them at will. A person's place in society is often dictated by the strength of their furies.