Simon kept firing, hoping that one of the balls would hit Cramer. Cramer needed one hand to hold the man up in front of him so he couldn’t reload. He pushed his human shield forward onto the barrel of Simon’s gun and then grabbed Simon’s arm, close to the elbow, twisting around to get him in a lock. Simon squealed and Cramer used his hip to throw him onto his back. The semi-automatic fell to the ground and Cramer put his foot on Simon’s chest, pinning him to the ground. Simon was winded and he lay gasping for breath, unable to speak. Cramer’s other victim got to his feet, his chest covered with yellow paint. “You bastard, Simon,” he said.

Cramer calmly reloaded his gun and aimed it at Simon’s chest. “Game, set and match,” he said quietly, and fired. The paintball caught Simon just over his heart and exploded. Cramer walked away without looking back.

Preston was waiting for him downstairs by the office with the five members of the Bayswater Blasters he’d defeated earlier. “How did it go?” Preston asked.

“Piece of cake,” Cramer said, removing his goggles. One of the men handed Cramer five ten-pound notes and he winked and accepted the money. Simon came down the stairs, his helmet still on, and went into the changing room without saying anything. The guy Cramer had used as a shield shrugged as if apologising for Simon’s bad behaviour and followed him inside.

“Did you see him?” Preston asked.

“Did I see who?” replied Cramer.

“The guy who was looking for you. Old guy, said he wanted to see you. I told him you were in the middle of a game and he said he’d give you a surprise. Borrowed a paintgun and a helmet and went in about ten minutes ago.”

Cramer frowned and spat his chewing gum into a wastepaper bin. “Old guy?” he asked. To Preston, anyone over the age of thirty was old.

Preston shrugged. “Grey hair, about your height, bit bigger. He didn’t give a name. Said he was an old friend.”

“I guess I should see what he wants,” said Cramer. He slid the goggles back on and reloaded his Splatmaster. He crept back up the stairs, wondering who his mysterious visitor was and why he wanted to play games rather than meet in the office. The first level was clear but as he passed beneath the rope and trapdoor he heard a footfall as if someone had suddenly shuffled backwards. Cramer smiled. He took the end of the rope and started swinging it, before running silently back to the stairs. It was going to be too easy, he thought. He moved through the first room on the second level, and stood for a moment by the open doorway. He heard a noise in the far right-hand corner and he moved immediately, stepping to the left and sweeping his gun around at chest height, seeking his target. He frowned as he realised that the room was deserted, then his heart sank as he saw the single paintball lying in the corner. Before he could move he felt the barrel of a gun jam up against his chin.