Heartbreaker (Heartmender #2)

Heartbreaker by V. Romas Burton: After finding out she is the Bellata--the prophesized warrior meant to save Decim--Addie, along with James, returns to Barracks to unite the Twelve Magisters. But as she discovers her old home in ruin, Addie stumbles upon Silas and Nana, the only people left in Barracks.

Heartmender (Heartmender #1)

Heartmender by V. Romas Burton: In the land of Barracks, the economy thrives on the barter of their citizens' most precious commodity—a human heart. Each year, the Heart Reign festival is thrown for those who have become of age to trade their hearts for their deepest desires. And this year is Adelaide Tye's year to trade.