The Lady's Last Mistake: A Bow Street Duchess Mystery, Book 8

Lady Cassandra Sinclair has spent years building walls so high that no man—especially not the insufferably arrogant Lord Grant Thornton—could ever scale them again. Nursing a scandalous secret and a wound that never fully healed, Cassie channels her energy into something far more meaningful than society's marriage mart: Hope House, a discreet refuge for pregnant, unwed women cast aside by the very men who ruined them. When Grant stumbles upon her hidden sanctuary, Cassie's carefully constructed life threatens to unravel entirely.

Lord Grant Thornton, physician and fourth son of a marquess, has cultivated his rakish reputation with deliberate precision—respectable women keep their distance, and that suits him perfectly. His disastrous first marriage cured him of any romantic idealism. But his father's ultimatum changes everything: remarry and produce an heir, or face complete financial ruin. Suddenly, the one woman Grant cannot stop thinking about is the very woman who despises him most.

Set against the glittering and treacherous backdrop of Regency London, this eighth installment in the beloved Bow Street Duchess Mystery series crackles with wit, tension, and long-suppressed longing. As Cassie and Grant are forced into an uneasy alliance, old resentments collide with undeniable attraction—and someone with dangerous secrets of their own begins circling Hope House with sinister intent.

Two people who swore they'd never surrender may discover that the greatest risk isn't scandal—it's falling for the one person