Everyone knows that Colin Bridgerton is the most charming man in London. Penelope Featherington has secretly adored her best friend's brother for...well, it feels like forever. After half a lifetime of watching Colin Bridgerton from afar, she thinks she knows everything about him, until she stumbles across his deepest secret...and fears she doesn't know him at all.

But when Colin returns to London from a trip abroad he discovers nothing in his life is quite the same - especially Penelope Featherington! The girl haunting his dreams. But when he discovers that Penelope has secrets of her own, this elusive bachelor must decide...is she his biggest threat - or his promise of a happy ending?