4. It's Going to Happen

When you get right down to it, everything in life is a matter of timing.

It's the night of 17 September 1984. The guest in room 629 of Brighton’s Grand Hotel has ordered a bottle of vodka and three cokes.

A few minutes before, the guest – who signed in two days ago as Roy Walsh – put the back on the side of the bath in 629’s en suite.

Behind that he has left a bomb, timed to go off in three weeks, three days, six hours and thirty-six minutes, at 2.54am on Friday 12 October. The day of Prime Minister Margaret Thatcher’s speech to the Conservative Party Conference in Brighton.

And the Prime Minister and all her cabinet, as this man who calls himself Roy Walsh knows, will be staying in the Grand Hotel. How do you feel as the timer ticks down? How do you fill your days?

And what of those who, all unknowing, are travelling towards the end date you have set?

Written and presented by Glenn Patterson

Series Producer: Owen McFadden

Story Consultant and Sound Design: Alan Hall

Producer: Lena Ferguson

Archive Producer: Fran Rowlatt McCormick

Production Co-Ordinator: Hollie Wallace

Composer: Mark McCambridge

Sound Engineer: Claire Marquess

Mixing Engineer: Mike Woolley

Patrick Magee archive courtesy of Peter Taylor and Whistledown Productions

Executive Producer: Rachel Hooper

A Walk on Air production in association with Keo Films for BBC Radio 4