Clara Grey is a hunter and part of a secret organisation known only as the Tower. During the Roaring Twenties, she sacrifices herself to destroy a powerful vampire. As a reward, she joins the ranks of Heaven's army, and for ninety years, Clara yearns to take an active role in the mortal realm. In an attempt to alter the course of history, scientists trigger an experiment with devastating results. The effects are felt not only on Earth, but in other realms as well. Clara and an echo from her past are sent to Earth to investigate the case of a corrupted soul. For this transgression, Heaven could go to war, but they choose to send Clara-and Edith. They fall to Earth, intent on their mission. Both have been isolated from the mortal realm. In their lives, monsters were on the decline, but they soon learn just how much the modern world has changed. While navigating this alien world, will they adapt to their surroundings to fulfil their mission? Or be swallowed up by the evil that lurks beneath? Before reading on, be sure to remember: while the Roaring Twenties are long gone, a heroine's work is never done.