They say that the moor has eyes.
It is 1890, and the windswept moors hold dark secrets. Chloe Sullivan is an amateur inventor whose holiday takes a dark turn when her friend and colleague, one of the few female mechanical experts in the British Empire, is murdered.
A black mechanical hound roams the moors, but could it have killed a woman? And what secrets are concealed within the dark family manor?
Accompanied by her naturalist husband and clockwork cat, Chloe is determined to see her friend's killer found.
But some secrets have a terrible cost.