Ringmain

A US state visit in the diplomatic diaries, a labour MP freelancing as an IRA fixer; and a mole at the top of the British intelligence worth lorry-loads of Armalites to the dangerous men in Dublin...the high-explosive ringman circuit is falling into place.

Its last connection is the world’s most expensive death dealer who kills the highest placed for the highest price. Code-named Siegfried, he’s in London to earn three-quarters of a million pounds with a job on the side.

Between the steel toe-cap going in and the ringman triggering to detonate, the kill-master will find out which side...