As international terrorism stalks the city of Edinburgh, DCC Bob Skinner confronts his darkest demons.
A small time crook stumbles upon a body hanging from a tree; a veteran from a Belgian marching band is killed in a hit and run incident and another dies of an apparent heart attack. Excitement on the streets is feverish as the city prepares for a rally to celebrate the return of Pope John the 25th to his home town. With the whole world watching, the security has to be bulletproof. But is there a chink in the armour and does Bob Skinner have the inner strength to find the answer to the biggest question of all?
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