Born with a perfect memory, Lady Elizabeth Beckett has become one of the world's most notorious spies, despite being the daughter of a duke. She is shielded only by her code name: Shadow. When young ladies of High Society begin disappearing from London, Eliza has no doubt who is orchestrating these crimes; a heinous man she has been investigating for years. Vowing to save them before they are sold to the highest bidder, she must risk everything to stop him.

Clara has been missing from the London marriage mart for six years and is reluctant to return. That feeling only grows when she happens to meet Lord Eaton—a rather arrogant, proud earl who vexes her from the moment they first meet. Not wanting to allow herself to be put down by a pompous, self-righteous man, she agrees to the silly game he proposes. The first to make the better match by the end of the season... wins.

When Arabella Grant’s wicked aunt dies suddenly, both Arabella and her cousin Lady Isabelle cannot help but feel relieved. She’d made their lives miserable, and now Lady Issie is free to read to her heart’s content, and Bella is free from taunts about her ignoble birth. Their newfound freedom is threatened, however, when Issie’s great-aunt commands her to travel to London for a come-out Issie has never wanted. Issie, who is in poor health, is convinced she’ll drop dead like her mother did if she drops into a curtsy before the queen.

London, 1861. Samantha Kingston has lived under the control of her overbearing uncle since the death of her parents six years ago. Trapped by the conventions of her gender and social class, she is desperate to find a way out. But when her aunt and uncle are murdered, the freedom she sought seems even further out of reach. A suspect in the crime, she finds herself on the run, unsure whom to trust, lost in the underworld she had only ever read about in the pages of a Dickens novel.

Mirabel’s dreams are shattered when her bridegroom vanishes without a trace from her little village in Cornwall. With a determined heart, she embarks on a journey to London to find him, only to find herself in humble service in a noble household. As time passes, the memory of her lost love lingers, defying the odds. When an unexpected opportunity arises to attend a lavish country house party as a companion, Mira seizes the chance.