Gwenevere St. James may be a lady, but she's never been interested in playing by the rules. Instead of ingratiating herself into high society, she spent a decade searching the world and studying the occult for a way to find her lost twin sister.So when a coven of witches offers her a missing person's case in return for a book of spells guaranteed to locate her twin at last, Gwen cannot refuse, even if it means doing something she swore she would never do: attend a country party for the wealthy elite.But the case is far more complicated and dangerous than she expected. Villagers whisper of ghostly riders in the night, and an unknown monster hunts the nearby forest, putting everyone in danger.As people go missing and innocent bystanders die, Gwen must make a choice: how many lives will she risk for the thing she wants most?

Magic took them hostage. Can a secret from her troubled past set them free?Eccentric social outcast Lady Gwenevere St. James knows many secret things: magic, alchemy, artifice, and even the truth about the long-forgotten faeries. But she does not know why common criminals are using rare and dangerous magic to kidnap orphans from the streets of New London.After rescuing one young girl, Gwen vows to save the rest, no matter the cost. But the handsome Scotland Yard inspector is also investigating the case, and he thinks Gwen knows far too much about the kidnappings to be innocent.To save the children, Gwen must dodge the Inspector, bully a coven of witches, and outsmart her marriage-minded mama, all while managing a wily young pickpocket and a headstrong raven. But an unexpected secret hides at the center of the mystery, one that will force her to confront the most painful event from her past, and possibly sacrifice her future.

How do you hunt monsters, stop rogue witches, and protect lost orphans... when you're on trial for treason?Lady Gwen St. James, New London's notorious black sheep, has never been one to follow the rules. But now, with the city facing an imminent faerie invasion and assassins closing in to silence her, Gwen must fight not just for her freedom, but for the fate of everyone she loves.To protect her home and family, she'll have to forge uneasy alliances with former enemies, uncover the conspiracy threatening the city, and confront a bitter truth–the people she trusts most may be the key to her downfall.