As promised - a catchup, especially required as the new book Trick of the Dark has just arrived as well. Got to say it's no trial whatsoever to do a little Val McDermid immersion reading.
From the Blurb:
When teenager Jennifer Maidment's murdered and mutilated body is discovered, it's clear that there is a dangerous psychopath on the loose. But it's not long before Tony and DCI Carol Jordan realise it's the start of a brutal campaign targeting an apparently unconnected group of young people.