Book excerpt: Lena Grey offered no defense for murdering her husband, and served fourteen long years in prison. But within months of her release his body is found in a disused morgue, recently killed. Who was the man she killed before, and why did she lie about his identity? Detective Inspector Francis Sadler and his Derbyshire team investigate, but before Lena can be questioned further she vanishes and her sister Kat begins to receive mysterious packages. As her inquiries begin to collide with the murder investigation, a link to the sisters' teenage lives emerges.