Though not of noble birth, Thomas Hope has a skill in banking that's made him one of the richest, most trusted men in London. Still, he keeps his dubious past hidden. So when an old acquaintance calls on Hope to help acquire the infamous French Blue Diamond, he's desperate to be discreet. He never expects that his biggest concern shouldn't be losing his reputation, but his heart...

Sophia Blaise is determined to make a brilliant match with this season's most eligible, most titled bachelor, but her true passion has been ignited by the incredible stories she hears while secretly transcribing the memoirs of a notorious Madam. After a night of clandestine writing ends with Sophia caught up in a scandalous adventure of her own--with an alluring banker--she begins to question whether she's suited to the proper life she's always known...

Caught up in a thrilling exploit and unexpected romance, Sophia must make a choice between what her head knows is safe and what her heart desperately desires, before both slip from her grasp forever...