An agent for Her Majesty's Secret Service, Alex Hepburn is a reluctant psychic whose powers sometimes come into play during his missions - such as preventing the attempt to assassinate Queen Victoria at Balmoral Castle, by a conspirator he's been hunting forever. But it is a mysterious young woman who foils the plot, then slips away . . .
She is Mahri Scot, once a courier for the faction that Alex has sworn to destroy. She can handle a gun or a knife as well as any man and, disguised as a boy, she becomes virtually invisible. She's never encountered a man she couldn't outsmart, outrun, or outmaneuver - until now. With Alex hot on her trail, she flees to the Scottish countryside. There she discovers that sometimes surrender can be the sweetest revenge - and the most dangerous.