Rachel Savernake investigates bizarre crimes and a baffling locked-room puzzle in this Gothic mystery from the winner of the CWA Diamond Dagger.

Yorkshire, 1606. A man vanishes from a locked gatehouse in a remote village. 300 years later, it happens again.

Autumn 1930. Journalist Nell Fagan knows there's only one person who can get to the bottom of this mystery: Rachael Savernake. But someone wants Nell dead, and soon, while investigating a series of recent deaths at Blackstone Sanatorium, she's missing entirely.

Looking for answers, Rachel travels to lonely Blackstone Fell, with its eerie moor, deadly waters and sinister tower. With help from Jacob Flint - who's determined to expose a fraudulent medium at a séance - Rachel will risk her life to bring an end to the disappearances...

A dazzling mystery peopled by clerics and medics and embellished with science and superstition, Blackstone Fell explores the shadowy borderlands between spiritual and scientific; between sanity and madness; and between virtue and deadly sin.