Teresa is everything her father Sir Hubert Bryan could wish for: clever, loyal and sharp-witted. The only problem is that she was born a girl and not the son he hoped would follow in his footsteps. But Teresa sees no reason why her gender should prevent her from being an asset in his mighty shipping empire.Sir Hubert is astounded at her request and is concerned that his beautiful daughter will fall prey to the fortune hunters amongst London Society. Having made his own vast fortune the hard way, he is only too aware of what men will do to have access to the kind of wealth his daughter will inherit. When his dear friend the Marquess of Walstoke begs for help to prevent his heir Harry, the Earl of Lanbourne, making a disastrous marriage, he sets up a test of intelligence for his daughter.