Thanks to NetGalley and Little, Brown Books for Young Readers for the opportunity to read and review The Hearts We Sold by Emily Lloyd-Jones. Dee has received an academic scholarship to attend the boarding school she now lives at. The scholarship funds have been cut and Dee dreads going home to her dysfunctional family. Dee sees a demon. Only humans that want something can see demons. The demons seem to be an epidemic in the community and Dee needs money for boarding school. She makes a twenty-four month deal with the Agathodaemon. The demon gives Dee what she wants and keeps her heart for the entire time of their covenant and Dee has to do his bidding for the same amount of time. After making the deal, Dee holds a portal open for James and Cal and she has no idea what is going on. She’s sent to help close another void with James, Cal and Cora and she realizes that they don’t understand the voids either. The story gradually explains the background of each member of the group and how they made their deal with the demon. Together they made an interesting team. I enjoyed the characters but they weren’t as complex as I would have liked. The story concept changes and it becomes more science fiction than supernatural. The ending is the best part of the story, touching and heartfelt. 4 stars for a unique book.