A series of anonymous letters leads to a case of cold-blooded murder for 19th-century private investigator Liberty Lane.

September, 1841. A new arrival has taken London society by storm. Lord Byron's handsome illegitimate son, George, recently arrived from the exotic island of Cephalonia in the company of his guardian, the mysterious Mr Vickery, has been setting female hearts aflutter.

But not all the attention George attracts is welcome. Mr Vickery has been receiving disturbing letters from a woman who calls herself Helena, and he hires Liberty Lane to find out who Helena is and what she wants.

As Liberty is to discover, there is more to this case than meets the eye. Is George really Lord Byron's son - or is he an imposter? And who exactly is Mr Vickery? What is his agenda? When Liberty comes across a body shot dead near Mr Vickery's home in Muswell Hill, the investigation takes a shocking turn.