Enter the world of the most notorious gambling den in London, where matches are made... unusually. Welcome to the world of THE LYON'S DEN: The Black Widow of Whitehall Connected World, where the underground of Regency London thrives... and loves.

A heart hidden in shadows. A beauty who dares to see.

Eternal optimist Lady Rosilee Fairchild refuses to let fate—or scheming rogues—dictate her future. When her brother is tricked into gambling away their estate and held prisoner by a ruthless man determined to force her into marriage, she takes matters into her own hands. Her solution? Find a husband of her own choosing before one can be chosen for her. And there’s only one place daring enough to help her do it without question—Mrs. Dove-Lyon’s infamous matchmaking den.

Hardened recluse Blake Faiththorne, Duke of Crane, has long been withdrawn from society, content to live in the shadows of his past. But when he learns that the woman who once saved him is now in danger herself—not only menaced by the worst sort of ruffian but on her way to the Lyon’s Den, a place dripping in scandal—he cannot stand idly by.

There is only one, big problem—though Blake has vowed never to marry himself, helping Rosilee find a husband leaves a bitter taste in his mouth. She is a flame in the dark, and he, despite all reason, is doomed to seek her radiance.

Can he break free from his haunted past and claim the woman who has always been his light? Or will old wounds and new dangers keep them apart forever?