Hart Ralston is a lonely marshal and Mercy Birdsall is a struggling undertaker who frequently clash while working in the magical land of Tanrid. Unbeknownst to each other, they begin an anonymous correspondence through magical letters, developing deep feelings for their mysterious pen pals. As they navigate the dangers of their world, including the threat of soul-stealing drudges, they must eventually reconcile their prickly public relationship with their private connection.