The Twist of a Knife (Hawthorne & Horowitz #4)

by Anthony Horowitz

I never really knew where I was with him, which made it almost impossible to write about him

But it’s accepting that you will never achieve your ambition that can really drive you mad.

‘He killed off half a dozen elderly patients . . . put rat poison in their tea. He thought he was doing them a favour.

That was something Harriet learned from him, the pleasure that comes with the twist of a knife.