[2] The plot follows seventeen-year-old Evie O'Neill as she helps her uncle Will—curator of the Museum of American Folklore, Superstition, and the Occult—uncover the killer behind a mysterious series of murders.

After hearing of numerous mysterious murders she uses her powers of object reading with the help of her uncle to defeat the spirit serial killer.

Along the way, she discovers more people of her kind with supernatural abilities and they unearth mysteries that deepen their suspicions towards a bigger plan behind the murders.

The sequel 'Lair of Dreams' picks up the pace, reveals more about characters central to the plot, and opens doors to new horrors.

The third book 'Before the Devil Breaks You' follows the Diviners as they try to uncover who is bringing an army of killer ghosts from the beyond and who exactly is The King of Crows.

The fourth book 'The King of Crows' brings the story to its climax as new characters are introduced and the stakes are at their highest.

The daughter of communist labor organizers, Mabel is relatively sheltered and plain compared to the more outgoing, flamboyant Evie.

After being injured by a bullet and resuscitated through a futuristic serum, Jericho reveals that most of his body runs on machinery because of a childhood bout of polio that left him unable to breathe without first an iron lung and later a "miracle cure" created by inventor Jacob Marlowe.

Memphis is a numbers runner working for a crime boss in Manhattan, one who is widely known throughout Harlem for collecting bets from residents throughout the neighborhood.

Theta (former name: Betty Sue Bowers) is a Ziegfeld girl who also enjoys the free-wheeling lifestyle of a flapper.

He and Theta became best friends shortly after she arrived in New York, and he often plays the piano to accompany her dancing in the Ziegfeld Follies.

"Naughty" John Hobbes is a dead serial killer, accidentally summoned by an ouija board, who kills to become the living avatar of a Christian cult known as The Brethren.

(Real name: Luther Clayton) The veteran is implied in this book to be a diviner, although Evie does not know how much to trust his warnings.

Described as a tall man in a stovepipe hat and a cloak of blue-black feathers, he is arranging some master plan and appears in dreams.