The street was dark as they entered the boarded-up building: scruffy wee shites in their tatty jeans and hooded tops. Three men and two women, nearly identical with their long hair, pierced ears, pierced noses and pierced God knew what else.

Everything about them screamed 'Kill Me!'

He smiled. They would be screaming soon enough.

The squat was halfway down a terrace of abandoned two storey buildings – dirty granite walls barely lit by the dull streetlights, windows covered with thick plywood. Except for one on the upper floor, where a thin, sick-looking light oozed out through the dirty glass, accompanied by thumping dance music. The rest of the street was deserted, abandoned, condemned like its inhabitants, not a soul to be seen. No one about to watch him work.

Half past eleven and the music got even louder; a pounding rhythm that would easily cover any noise he made. He worked his way around the doorframe, twisting the screwdriver in time with the beat, then stepped back to admire his handiwork – three-inch galvanized woodscrews all the way round the door, holding it solid against the frame, making sure it stayed irrevocably shut. A grin split his face. This would be good. This would be the best one yet.

He slipped the screwdriver back into his pocket, pausing for a moment to stroke the cold, hard shaft. He was hard too, the front of his trousers bulging with barely concealed joy. He always loved this bit, just before the fire started, when everything was in place, when there was no way for them to escape. When death was on its way.

Quietly he pulled three glass bottles and a green plastic petrol can from the holdall at his feet. He spent a happy minute unscrewing the bottles' caps, filling them with petrol and popping the torn rag fuses in place. Then it was back to the screwed-shut front door. Lever open the letter box.