The lower corridor was clear. They raced for the staircase, moving fast and low, coming around corners at a crouch, down where the average man wouldn't be expecting them. On the third-floor landing, screams erupted from several flats and a rush of feet came charging down the corridor.

"What the devil—" one of the constables began.

A pack of women, many of them carrying small children, stampeded into the stairwell, running wild-eyed past Stirling, Murdoch, and the panting constables. One of the girls, fifteen at a glance, snarled at them on her way past.

"What the hell are you doing in here, eh? Chasing the only man with guts enough to shoot back at those butchers? Why don't you British bastards go after the Orangemen for a change?" She spat in his face, then fled down the stairs.

It wouldn't have done any good to tell her they would already have gone after the Orangemen, if the sodding IRA sniper hadn't pinned them down, preventing it.

Meanwhile, smoke poured down the stairwell in the wake of the fleeing women. Stirling cursed under his breath. "Upstairs, double time, he'll make every shot count, now the building's been torched." If he hadn't gone already, running for safety in the confusion.

Two more flights up, twisting round the landings, and they'd gained the fifth floor. Doors stood open, flats abandoned by panic-stricken residents. A chatter of gunfire sounded through broken windows from the street below. The sound of return fire from the IRA gunman was unexpected music in Stirling's ears. Their sniper wasn't as well trained as he'd thought. He was still in the room, shooting.