This book is a New York Times bestseller and the first part of a series about a divine war, hopes, disappointments, and the power of love. The story unfolds in the early 20th century and is a tender romance about two rivals who experience a shift in their relationship—from hatred to love. The book will appeal to fans of Holly Black, Sarah J. Maas, Jennifer Armentrout, and Victoria Schwab. The main heroine, Iris Winnoe, wants to bring her family together, but soon finds herself pulled into a mystical war of gods after her letters to her brother end up in the wrong hands. Her relationship with Roman Kitt, a coworker, is so strong that they become the key to the outcome of the war for the fate of humankind.