A whirligig is a spinning top, a small predatory beetle, and a way of describing, for example, coming and goings. I quickly ripped through Andrew James Greig’s short, breakout, novel. Glen Mhor (Inverness) provides a Highland setting for skulduggery in this whodunnit. Four murders and a former top policeman forced to commit suicide, run in tandem with eight children that went missing from a home run by the Sisters of Mercy. Five shallow graves...