Philip Pullman A Sally Lockhart Mystery Series 4 Books Set The Tin Princess

The Shadow in the North
Sally is twenty-two, and running her own financial consultancy - a thoroughly modern woman in a world of pompous men - but she's about to be thrown headlong into a vicious web of murder, mystery and pure evil. When a client's lost investment appears suspicious Sally investigates. Soon she is ensnared in a whirl of high-society danger and deceit, which can lead her in only one direction - to the terrifying secret of the Shadow in the North.

The Ruby in the Smoke
Soon after Sally Lockhart's father drowns at sea, she receives a strange anonymous letter. The dire warning it contains makes a man die of fear at her feet. Determined to discover the truth about her father's death, Sally is plunged into a terrifying mystery in the dark heart of Victorian London, at the centre of which lies a deadly blood-soaked jewel.

The Tin Princess
Jim Taylor, Sally's oldest friend, is engaged as bodyguard to a princess. But Crown Princess Adelaide of Razkavia not what you'd expect. She's the slum-girl Jim has been searching for ever since she vanished ten years ago. Now her life is in mortal danger, and together they must battle against unknown enemies in a country where no one can be trusted. This dramatic story of love, loyalty and venture is the final novel in the quartet

The Tiger in the Well
Sally is 25, and somebody wants to destroy her. She receives divorce papers from a man she has never met, let alone married - yet his trap is so well laid that she is powerless to prove otherwise. When custody of her precious daughter is awarded to this evil stranger, it is the beginning of a terrifying struggle in which Sally will have to fight, with a gun if necessary, for the freedom of her family. The third instalment of the quartet.