Grave Peril (The Dresden Files, #3)

by Jim Butcher

One thing about intimidation is that people can always think up something worse that you could do to them than you can, if you leave their imagination some room to play.

‘Ghosts are beings that live in the spirit world.

‘But who would do that? And why?’ ‘You got me. Big mystery. We’ll never know. Time for a beer.’

‘Bob,’ I said. ‘You can’t just go around killing people.’ ‘I know. That’s why you should do it.’