Warbreaker

Warbreaker is a fantasy novel written by Brandon Sanderson, first published in 2009. The story is set in the world of Roshar, a land deeply influenced by the magic system of BioChromatic Breath. The narrative centers on two princesses, Vivenna and Siri, from the kingdom of Idris, who are sent to the wealthy and powerful empire of Hallandren. Their kingdoms have a long-standing animosity, and Vivenna is betrothed to the Hallandren ruler, a man known as the Returned God.

The core of the magic system in Warbreaker is BioChromatic Breath, a magical energy that allows individuals to perform various feats. Breath is gained through breath-holding, and higher concentrations of Breath grant greater magical abilities. This magic is used for a wide range of purposes, including art, warfare, and personal enhancement. The Returned are individuals who have died and returned to life, possessing immense power and a cult-like following.

The plot follows Vivenna's quest to rescue her sister from what she believes is a dangerous marriage and to overthrow the Hallandren empire. Siri, on the other hand, finds herself drawn into the complexities of Hallandren society and the political machinations of the Returned. The novel explores themes of faith, perception, manipulation, and the nature of good and evil. Sanderson is known for his intricate world-building and well-defined magic systems, and Warbreaker is often praised for its unique approach to magic and its compelling characters. The novel stands as a standalone story within Sanderson's larger Cosmere universe.