Sapper 
Female Of The Species [PDF ebook] 

Bulldog Drummond has slain his archenemy, Carl Peterson, but Peterson’s mistress lives on and is intent on revenge. Drummond’s wife vanishes, followed by a series of vicious traps set by a malicious adversary, which lead to a hair-raising chase across England, to a sinister house and a fantastic torture-chamber modelled on Stonehenge, with its legend of human sacrifice.