By day, Dr. Serena Vale holds the grief of everyone who walks into her office. By night she hunts demons wearing human skin — binding them one by one into the Sin Ledger, the book she needs to finish her revenge.But the Ledger collects payment for every name she writes. Every page buys a soul. Every page sells a piece of hers.She's saving the world one sin at a time — if there's anything human left of her to save.
