The studio was only half a block away, housed in a former racquetball club that had gone belly-up once the passion for racquetball had passed. With aerobics coming in, it made perfect sense to convert all those plain narrow rooms with hardwood floors into little fat-burning ovens for women who yearned to be lean and fit. I asked if Carrie was teaching and the woman at the desk pointed mutely toward the source of the deafening music that made further conversation unlikely at best. I followed the end of her finger and rounded the corner. On my right, there was a waist-high wall overlooking an aerobics class in full swing one floor below.

The acoustics were grim. I watched from the observer's gallery while the music blasted. Carrie hollered out encouragement and fifteen of the best-looking female bodies in town exercised with a fanaticism I'd seldom seen. Apparently, I'd caught the class at its apex. They were doing buttocks lifts that looked obscene: women groaning on the floor in frosted, skintight leotards, doing hip thrusts and bun squeezes as if unseen partners were grinding away at them in unison.

Carrie St. Cloud was a surprise. Her name suggested a second runner-up for a Junior Miss pageant, or maybe a budding actress whose real name is Wanda Maxine Smith. I had pictured run-of-the-mill California good looks, the trim surfers body, blond hair, dazzling white teeth, maybe a little tendency to tap dance. She was none of these things.

She couldn't have been more than twenty-two with a body builders musculature and dark hair to her waist. Her face was strong, like Greek statuary, with a full mouth, rounded chin. The leotard she wore was a pale yellow Spandex, defining the wide shoulders and lean hips of a gymnast. If she had an ounce of fat on her, I didn't spy it anyplace. She had no breasts to speak of, but the effect was intensely female anyway. This was no beach bunny. She took herself seriously, and she knew what fitness was about, breezing through the exercises without even breathing hard. Every other woman in the place was in pain. It made me grateful that all I have to do is jog three miles a day. I'm never going to look as good as she, but it didn't seem like a bad trade.

Carrie took the class through cool-down, a slow stretch, and a couple of yoga moves and then let them sprawl on the floor like casualties on a battlefield. She turned the music of£ grabbed a towel, and buried her face in it, moving out of the room through a doorway just below me. I found the stairs and headed down, catching her at the water fountain just outside the locker rooms. Her hair fell across her shoulders like a nun's veil and she had to gather it in a knot and hold it to one side so she could drink without getting it wet.

"Carrie?"