The Melissa De La Cruz novels are a series of young adult books written by Melissa De La Cruz. The books are set in the fictional world of Oceania which is divided into four states: Austra, North Aemelia, South Aemelia, and East Aemelia. The three main protagonists of the series are Callum Hunt, Daphne Millbrook, and Maia Reginald. The first book of the series is "Rebel Belle" which was released on February 29th of 2009. Other books in the series include "Gilded Cage" (2010), "Treacherous" (2010), "The Nine Lives of Chloe King" (2012), "The House of Broken Dolls" (2014), "The Darkest Minds" (2017), and "The Thousandth Floor" (2018). Melissa De La Cruz's teen and young adult novels are centered around themes such as dystopias, political ideology, family relationships, gender identity, relationships between adults and teens, and class formations. They are set in Oceania which is divided into four countries: Austra, North Aemelia, South Aemelia, and East Aemelia. The three main protagonists of the series are Callum Hunt, Daphne Millbrook, and Maia Reginald. The first book of the series is "Rebel Belle" which was released on February 29th of 2009. Other books in the series include Gilded Cage (2010), Treacherous (2010), The Nine Lives of Chloe King (2012), The House of Broken Dolls (2014), The Darkest Minds (2017) and The Thousandth Floor (2018).