It's a fear more paralyzing than falling. More terrifying than absolute darkness. More horrifying than anything you can imagine. It's the one fear you cannot escape, no matter where you run...no matter where you hide. It's the fear of yourself. It's real. It can happen to you. And facing it can be deadly.

Fear for your mind.

On that Tuesday in January, when her life changed forever, Martine Rhodes woke with a headache, developed a sour stomach after washing down two aspirin with grapefruit juice, guaranteed herself an epic bad-hair day by mistakenly using Dustin's shampoo instead of her own, broke a fingernail, burnt her toast, discovered ants swarming through the cabinet under the kitchen sink, eradicated the pests by firing a spray can of insecticide as ferociously as Sigourney Weaver wielded a flamethrower in one of those old extraterrestrial-bug movies, cleaned up the resultant carnage with paper towels, hummed Bach's Requiem as she solemnly consigned the tiny bodies to the trash can, and took a telephone call from her mother, Sabrina, who still prayed for the collapse of Martie's marriage three years after the wedding. Throughout, she remained upbeat--even enthusiastic--about the day ahead, because from her late father, Robert "Smilin' Bob" Woodhouse, she had inherited an optimistic nature, formidable coping skills, and a deep love of life in addition to blue eyes, ink-black hair, and ugly toes.

Thanks, Daddy.

After convincing her ever hopeful mother that the Rhodes marriage remained happy, Martie slipped into a leather jacket and took her golden retriever, Valet, on his morning walk. Step by step, her headache faded.

Along the whetstone of clear eastern sky, the sun sharpened scalpels of light. Out of the west, however, a cool onshore breeze pushed malignant masses of dark clouds.

The dog regarded the heavens with concern, sniffed the air warily, and pricked his pendant ears at the hiss-clatter of palm fronds stirred by the wind. Clearly, Valet knew a storm was coming.

He was a gentle, playful dog. Loud noises frightened him, however, as though he had been a soldier in a former life and was haunted by memories of battlefields blasted by cannon fire.

Fortunately for him, rotten weather in southern California was seldom accompanied by thunder. Usually, rain fell unannounced, hissing on the streets, whispering through the foliage, and these were sounds that even Valet found soothing.

Most mornings, Martie walked the dog for an hour, along the narrow tree-lined streets of Corona Del Mar, but she had a special obligation every Tuesday and Thursday that limited their excursion to fifteen minutes on those days. Valet seemed to have a calendar in his furry head, because on their Tuesday and Thursday expeditions, he never dawdled, finishing his toilet close to home.

This morning, only one block from their house, on the grassy sward between the sidewalk and the curb, the pooch looked around shyly, discreetly lifted his right leg, and as usual made water as though embarrassed by the lack of privacy.

Less than a block farther, he was preparing to conclude the second half of his morning business when a passing garbage truck backfired, startling him. He huddled behind a queen palm, peering cautiously around one side of the tree bole and then around the other, convinced that the terrifying vehicle would reappear.

"No problem," Martie assured him. "The big bad truck is gone. Everything's fine. This is now a safe-to-poop zone."

Valet was unconvinced. He remained wary.

Martie was blessed with Smilin' Bob's patience, too, especially when dealing with Valet, whom she loved almost as much as she might have loved a child if she'd had one. He was sweet-tempered and beautiful: light gold, with gold-and-white feathering on his legs, soft snow-white flags on his butt, and a lush tail.

Of course, when the dog was in a doing-business squat, like now, Martie never looked at him, because he was as self-conscious as a nun...