With her headful of wild curls and wilder ideas and an unabashed love of experiments and explosives, society has labeled Lady Imogen Loveless peculiar…and doesn’t know she’s one of the Hell’s Belles—a group of vigilantes operating outside the notice of most of London.

At birth, Mick Trewlove, the illegitimate son of a duke, was handed over to a commoner. Despite his lowly upbringing, Mick has become a successful businessman, but all his wealth hasn’t satisfied his need for revenge against the man who still won’t acknowledge him. What else can Mick do but destroy the duke’s legitimate son - and woo the heir’s betrothed into his own unloving arms.... Orphaned and sheltered, Lady Aslyn Hastings longs for a bit of adventure. With her intended often preoccupied, Aslyn finds herself drawn to a handsome man who seems to understand her so well.

Evie Harlow is quite content running the quaint little bookshop she inherited from her father…or so she convinces herself anyway. It might not bring in much money, it's not very exciting, and it's not a very good way to meet eligible men, but Evie's always thought she was destined for spinsterhood, a dull life, and hard work.

All of London gossips about the Duke of Montrose. A recluse. Inflicted with a terrible disease. A gargoyle with a terrible temper. But he's also the most important patron of the centuries-old book shop that belongs to Miss Elizabeth Sharpe's family. Now she's been charged with delivering books to the Gargoyle of London herself—or risk their shop falling into ruin. But surely a duke can't be that ghastly . . .

For years Serafina McPhee has been engaged to marry the heir to the duke of Hartholm; and for almost as long, she has been struggling to find a way out of that engagement. When he suddenly dies, she does not mourn but thrills at the idea that she will be free. Unfortunately, best-laid plans go awry when the next in line for the title, her intended's cousin, Raphael "Rafe" Flynn, is forced to take over the engagement. But Serafina knows Rafe's reputation as a libertine and wants nothing to do with him, either, even if he is devastatingly handsome.