A review by skinnypenguin
In the Morning I'll be Gone by Adrian McKinty

4.0

Sean Duffy is brought back to police work with Special Branch trying to find a terrorist who Sean had grown up with. He visits the family of the terrorist's exwife and makes a deal with the mom. He will look into her youngest daughter's death in exchange for where to find her former son in law.
Sean has a locked room mystery to figure out. When he does he then gets the info on where to find the terrorist. He is working with police from Great Britain and runs into lots of problems along the way.
Set during the time of the troubles it is an interesting story.