The respectable façade of Carmarthenshire's county town conceals a secret world of crime and betrayal, doggedly policed by a local intelligence organisation. 'Darkness at Dark Gate' reveals the true face of this alternative reality Carmarthen.The third in a four-book series, this story follows the adventures of Carmarthen Intelligence, their friends in the Welsh Bureau of Investigation and the steadfast people of the village of Myddfai.