Happy shook his head slowly. “Human sacrifice,” he said thickly. “Death and horror and celebration, repeated so often it’s imprinted on this place, like grooves cut in a record. Genius loci, the spirit of the place; a bad place, poisoned by the psychic stain of what happened here . . . Sacrifice, to ensure the sun will rise again, and that spring will follow winter, and that at least some of the babies will live. One life offered up freely for the greater good. In worship to some great Power.”

“But what woke it up, after lying quiet for so long?” said Melody. “There’s always a focal point to every haunting, some single trigger . . .”

“The fools,” said JC. “The bloody fools . . . When the building contractors broke ground here, they must have dug down deep enough to uncover the ancient site. They stopped work and consulted the supermarket bosses, who were afraid that archaeologists might move in and bring operations to a halt, costing them millions. So they had the contractors cover over the disturbed site and built their new car park here anyway.”

“Yeah,” said Happy. “So far, so typical. So?”

“Don’t you get it?” said JC, almost angrily. “First they disturb the energy stored in the old site, the ancient bad place with all its memories of long-forgotten Power. And then they held a big opening ceremony here, made a real celebration of it. Even then, they might have got away with it . . . If an old lady hadn’t died here, killed by a man in a hurry. So—a ceremony, blood and death, calling across the centuries, like to like. A direct link between Past and Present, awakening . . . Something ancient and unspeakably powerful. All it needed to manifest fully was three poor damned fools who thought they knew what they were doing. A telepath, a woman with powerful technology, and a leader who should have known better. It’s us. We did this. We woke it up.”

All six cars started rocking back and forth in place, shaking wildly. Their headlights snapped on, burning bright like dragons’ eyes. Their engines revved and roared like angry beasts, their horns bleating and blaring. Then they all surged forward. The three ghost finders scattered, and the cars ploughed right through Melody’s stacked instruments. The comforting circle of light disappeared, replaced by the fierce, stabbing beams from the cars and the pitiless glare of the full moon. The cars screeched around in narrow turns and came back again, only to slam into each other in head-on collisions, like maddened stags going head to head in rut. They rocked to a halt, steam rising from the crumpled bonnets, their headlights slowly fading like the light going out of dying eyes. The three ghost finders came together again, breathing hard.

“Whatever it is, it doesn’t know how to drive a car,” said Happy. “Sorry about your toys, Melody.”