Turning, she half expected to see an approaching assailant or a hurtling car. Instead, she was alone on this quiet residential street.

Nothing rushed toward her with lethal purpose. The only moving things were those harried by the wind. Trees and shrubs shivered. A few crisp brown leaves skittered along the pavement. Garlands of tinsel and Christmas lights, from the recent holiday, rustled and rattled under the eaves of a nearby house.

Still uneasy, but feeling foolish, Martie let out the breath that she'd been holding. When the exhalation whistled between her teeth, she realized that her jaws were clenched.

She was probably still spooked from the dream that awakened her after midnight, the same one she'd had on a few other recent nights. The man made of dead, rotting leaves, a nightmare figure. Whirling, raging.

Then her gaze dropped to her elongated shadow, which stretched across the close-cropped grass, draped the curb, and folded onto the cracked concrete pavement. Inexplicably, her uneasiness swelled into alarm.

She took one step backward, then a second, and of course her shadow moved with her. Only as she retreated a third step did she realize that this very silhouette was what frightened her.

Ridiculous. More absurd than her dream. Yet something in her shadow was not right: a jagged distortion, a menacing quality.

Her heart knocked as hard as a fist on a door.

In the severe angle of the morning sun, the houses and trees cast distorted images, too, but she saw nothing fearsome in their stretched and buckled shadows--only in her own.

She recognized the absurdity of her fear, but this awareness did not diminish her anxiety. Terror courted her, and she stood hand in hand with panic.

The shadow seemed to throb with the thick slow beat of its own heart. Staring at it, she was overcome with dread.

Martie closed her eyes and tried to get control of herself.

For a moment, she felt so light that the wind seemed strong enough to sweep her up and carry her inland with the relentlessly advancing clouds, toward the steadily shrinking band of cold blue sky. As she drew a series of deep breaths, however, weight gradually returned to her.

When she dared to look again at her shadow, she no longer sensed anything unusual about it. She let out a sigh of relief.

Her heart continued to pound, powered not by irrational terror anymore, but by an understandable concern as to the cause of this peculiar episode. She'd never previously experienced such a thing.

Head cocked quizzically, Valet was staring at her.

She had dropped his leash.

Her hands were damp with sweat. She blotted her palms on her blue jeans.

When she realized that the dog had finished his toilet, Martie slipped her right hand into a plastic pet-cleanup bag, using it as a glove. Being a good neighbor, she neatly collected Valet's gift, turned the bright blue bag inside out, twisted it shut, and tied a double knot in the neck.

The retriever watched her sheepishly.

"If you ever doubt my love, baby boy," Martie said, "remember I do this every day."

Valet looked grateful. Or perhaps only relieved.

Performance of this familiar, humble task restored her mental balance. The little blue bag and its warm contents anchored her to reality. The weird incident remained troubling, intriguing, but it no longer frightened her.

Excerpted from False Memory by Dean Koontz. Copyright© 2000 by Dean Koontz. Excerpted by permission of Bantam, a division of Random House, Inc. All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.