London, April 1812. Eighteen-year-old Lady Helen Wrexhall is on the eve of her debut presentation to the Queen. Her life should be about gowns and dancing, and securing a suitable marriage. Instead, when one of her family's housemaids goes missing, Lady Helen is drawn to the shadows of Regency London.There, she finds William, the Earl of Carlston. He has noticed the disappearance, too, and is one of the few who can stop the perpetrators: a cabal of powerful demons that has infiltrated every level of society. But Lady Helen’s curiosity is the last thing Carlston wants—especially when he sees the searching intelligence behind her fluttering fan. Should Helen trust a man whose reputation is almost as black as his lingering eyes? And will her headstrong sense of justice lead them both into a death trap?In The Dark Days Club, internationally bestselling author Alison Goodman introduces readers to a heroine who is just as remarkable as Eona—and yet again reinvents an established literary genre, making it her own.