The Home Office has asked Sir Bertrand Thorndike to head an investigation into stolen royal jewels. And as with everything concerning the Prince Regent, discretion is paramount.

It's the perfect chance for Bertie to step out of his brother's long shadow. Unfortunately, his superior, the Duke of Haverly, has a plan that makes him balk. In order to sell his cover, Bertie must play the part of a man looking for love, ready to reform his rakish ways.

Philippa Cashel escaped a life as one of society's best-known courtesans and now devotes her time to helping other women in dire straits. Her hope is that laboring hard enough at her charity work will allow her to feel worthy of God's forgiveness of her past. So when Sir Bertrand Thorndike approaches her about becoming an agent of the Crown, she is skeptical. Why her? She's focused on getting her school for underprivileged women up and running, not on cloak-and-dagger skullduggery.

But when two of Philippa's rescued girls become targets, Philippa risks partnering with Bertie to find the loot and stop a killer.