"In 1964, a grisly murder is committed in the small town of Dickinson, North Dakota. Erik and Lida Knudsen are found murdered in their bed, their throats slit. Sheriff Hilo Jenkins is called to the scene and discovers a strange copper amulet clasped in Erik's hand. Knowing that his friend Marjorie Trumaine is a skilled researcher and professional indexer, Jenkins asks for her help in investigating the possible meaning of the amulet with its unusual...

Marjorie Trumaine, a freelance indexer from rural North Dakota in the 1960s, risks her life to help local law enforcement track down a missing, disabled girl. Dickinson, North Dakota, 1965. It's a harsh winter, and freelance indexer Marjorie Trumaine struggles to complete a lengthy index while mourning the recent loss of her husband, Hank. The bleakness of the weather seems to compound her grief, and then she gets more bad news: a neighbor's fourteen-year-old...