Wobbler stopped. "Why should it be a werewolf?" he said.

"I saw this film, Curse of the Revenge of the Werewolf," said Bigmac, "and someone heard a snarl like that and went into a dark alley, and next thing, he was lying there with all his special effects spilling out on the pavement."

"Huh," quavered Wobbler. "There's no such things as werewolves."

"You go and tell it, then."

Johnny stepped forward.

There was a shopping trolley lying on its side just inside the alley, but that wasn't unusual. Herds of shopping trolleys roamed the streets of Blackbury. While he'd never seen one actually moving, he sometimes suspected that they trundled off as soon as his back was turned.

Bulging carrier bags and black plastic dustbin liners lay around it, and there was a number of jars. One of them had broken open, and there was a smell of vinegar.

One of the bundles was wearing trainers.

You didn't see that very often.

A terrible monster pulled itself over the top of the trolley and spat at Johnny.

It was white, but with bits of brown and black as well. It was scrawny. It had three and a half legs but only one ear. Its face was a mask of absolute, determined evil. Its teeth were jagged and yellow, its breath as nasty as a pepper spray.

Johnny knew it well. So did practically everyone else in Blackbury.

"Hello, Guilty," he said, taking care to keep his hands by his sides.

If Guilty was here, and the shopping trolley was here...

He looked down at the bundle with the trainers.

"I think something's happened to Mrs Tachyon," he said.

The others hurried up.

It only looked like a bundle, because Mrs Tachyon tended to wear everything she owned, all at once. This was a woolly hat, about twelve jerseys and a pink ra- skirt, then bare pipe cleaner legs down to several pairs of football socks and the huge trainers.

"Is that blood?" said Wobbler.