In The Ruby In The Smoke, Sally is recently orphaned, and is being hunted by an assassin as she is caught up in London’s deadly opium trade. With her new friends – a pioneering young photographer Frederick who unknowingly saves her life and Jim, a quick-witted street child with the nerve for a fight and a taste for danger – she must discover her father’s killer.

In The Shadow in the North, Sally, Frederick and Jim are drawn deeper into a world of high-society danger and deceit. They face new mysteries and old enemies and must confront the biggest challenges of them all; the challenges of both love and death.