Even before he reached the greenhouse, he could see that this was no false alarm—its door had been forced, and the lights were on. Goldilocks’s phone rang and rang at the other end, and he was just about to give up when her answering machine clicked in.

“Hi!” she said in a bright and breezy voice. “This is Henny Hatchett of The Toad. If you’ve got a good story…”

Stanley was by now only semilistening. He mumbled a greeting and his name at the beep, then ventured forth into his inner cucumber-cultivating sanctum, stick in hand and apprehensive of heart. He stopped short and looked around with growing incredulity.

“Good heavens!” he said in breathless astonishment. “It’s… full of holes!”

An instant later Stanley’s property exploded in a flaming ball of white-hot heat that turned the moonless night into day. The shock wave rolled out at the speed of sound in every direction and carried in front of it the shattered remains of Stanley’s house and gardens, while the fireball arced and flamed up into the night sky. The property next door collapsed like a house of cards, and the old oak had its side facing the blast reduced to a foot of charcoal. Windows were broken up to five miles away, and the blast was heard as a dull rumble in Reading, some forty miles distant. As for Stanley, he and almost everything he possessed were atomized in a fraction of a second. His false teeth were found embedded in a beech tree a quarter of a mile away, and his final comment in this life recorded on Goldilocks’s answering machine. She would hear it with a sense of rising foreboding upon her return—and in just over a week she, too, would be dead.

The neighborhood in West Reading that centers on Compton Avenue is similar to much of Reading’s prewar urban housing. Bay windows, red brick, attached garage, sunrise doors. The people who live here are predominantly white collar: managers, stock controllers, IT consultants. They work, raise children, watch TV, fret over promotions, socialize. Commonplace for Reading or anywhere else, one would think, aside from one fact. For two decades this small neighborhood has harbored a worrying and unnatural secret: Their children, quite against the norms of acceptable levels of conduct… behave themselves and respect their parents. Meals are always finished, shoes neatly double-bowed and cries of please and thank you ring clearly and frequently throughout the households. Boys’ hair is always combed and cut above the collar, bedrooms are scrupulously clean, baths are taken at first request, and household chores are enthusiastically performed. Shocking, weird, unnatural—even creepy. But by far the most strenuously obeyed rule was this: Thumbs are never, repeat never, sucked.

“We used to call this neighborhood ‘Cautionary Valley’ in the old days,” said Detective Chief Inspector Jack Spratt to Constable Ashley. “Where vague threats of physical retribution for childhood misdemeanors came to violent fruition. Get out of bed, play with matches, refuse your soup or suck your thumb, and there was something under the bed to grab your ankles, spontaneous human combustion, accelerated starving or a double thumbectomy.” He sighed. “Of course, that was all a long time ago.”

It had been twenty-five years ago, to be exact. Jack had been only a mere subordinate in the Nursery Crime Division, which he now ran. Technically speaking, cautionary crime was “juvenilia” rather than “nursery,” but jurisdictional boundaries had blurred since the NCD’s inception in 1958 and their remit now included anything vaguely unexplainable. Sometimes Jack thought the NCD was just a mop that sponged up weird.

“Did you get any prosecutions back then?” asked Ashley, whose faint blue luminosity cast an eerie glow inside the parked car.

“We nicked a couple of ankle grabbers and took a chimney troll in for questioning, but the ringleader was always one giant stride ahead of us.”

“The Great Long Red-Legg’d Scissor-man?”

“Right. We could never prove he snipped off the thumbs of errant suck-a-thumbs, but every lead we had pointed toward him. We never got to even interview him—the attacks suddenly stopped, and he just vanished into the night.”

“Moved on?”

“I wish. Ever met a Cautionary Valley child?”

“No.”

Jack shook his head sadly. “Sickeningly polite. A credit to their parents. Well mannered, helpful, courteous. We wanted to battle the Scissor-man and his cronies with everything the NCD could muster but were overruled by the local residents’ committee. They decided not to battle the cautionaries lurking in the woodwork but instead use them. They pursued a policy of ‘cautionary acquiescence’ by promulgating the stories and thus ensured that their children never had cause to accidentally invoke the cautionaries.”

“Did it work?”

“Of course. Believe me, once the hands really do grab your ankles when you get out of bed or the troll up the chimney does try to get you for not eating your greens, you make damn sure to do everything your parents tell you. But they’re still here,” added Jack as he looked around, “waiting in the fabric of the neighborhood. In the stone, earth and wood. Under beds and in closets. They’ll reappear when someone is leaning back on their chair, being slovenly, not eating their soup or—worst of all—sucking their thumb.”

They fell into silence and looked around, but all was normal. The summer’s night was cool and clear and the streets empty and quiet. They had been parked on Compton Avenue for twenty-five minutes, and nothing had appeared remotely out of the ordinary.

Things at the Nursery Crime Division were looking better than they had for many years, Jack admitted to himself. The success of the Humpty Dumpty inquiry four months earlier had placed himself and the NCD firmly in people’s consciousness. While not perhaps up there among cutting-edge police detection such as murder, serious robbery or the ever-popular “cold cases,” they were certainly more important than traffic or the motorcycle-display team. There were plans to increase the funding from its ridiculously low level and add a permanent staff beyond himself, DS Mary Mary and Constable Ashley.

“What’s the time?”

Ashley glanced at his watch.

“10010 past 1011.”

Jack did a quick calculation. Eighteen minutes past eleven. It was binary, of course, Ashley’s mother tongue. He generously spoke it as ones and zeros for Jack’s benefit—full-speed binary sounds like torn linen and is totally unintelligible. Ashley had no problem with English or any of the other twenty-three principal languages on the planet; it was the decimal numbering system he couldn’t get his head around. He was a Rambosian, an alien visitor from a small planet eighteen light-years away who had arrived quite unexpectedly along with 127 others four years previously. Every single one of the 70 billion or so inhabitants of Rambosia were huge fans of Earth’s prodigious output of television drama and comedy, and Ashley had been part of a mission to discover why there had never been a third series of Fawlty Towers and to interview John Cleese. But when the mission got to see just how much filing and bureaucratic data management there was on the planet, all 128 elected to stay.