Never Ask the Dead — Gary Donnelly

WHEN ONLY THE DEAD HAVE THE ANSWERS,
WHO CAN TELL YOU THE TRUTH?
DI Owen Sheen and DC Aoife McCusker are working for the Serious Historic Offences Team in Belfast, although the hands-on approach of the chief constable and the political agendas at play are a struggle to manage.
A cryptic message from a retired, and now missing, cop preys on Sheen's mind. Tucker Rodgers claims his friend has been killed and now someone is coming for him. Sheen and McCusker's search for Tucker and the truth places them in the path of the most notorious IRA double agent of the Troubles, as well as someone else with an old score to settle .with