Excerpt from Grayson by Lynne Cox, plus links to reviews, author biography & more

One

There's something frightening, and magical, about being on the ocean, moving between the heavens and the earth, knowing that you can encounter anything on your journey.

The stars had set. The sea and sky were inky black, so black I could not see my hands pulling water in front of my face, so black there was no separation between the sea and the sky. They melted together.

It was early March and I was seventeen years old, swimming two hundred yards offshore, outside the line of breaking waves off Seal Beach, California. The water was chilly, fifty-five degrees and as smooth as black ice. And I was swimming on pace, moving at about sixty strokes per minute, etching a small silvery groove across the wide black ocean.

Usually my morning workouts started at 6 a.m., but on this day, I wanted to finish early, get home, complete my homework, and spend the day with friends, so I had begun at 5 a.m.

There were vast and silent forces swirling around me: strong water currents created by distant winds and large waves, the gravitational pull of moon and sun, and the rapid spinning of the earth. These currents were wrapping around me like long braids of soft black licorice, and I was pulling strongly with my arms, trying to slice through them.

As I swam, all I heard were the waves, rising and tumbling onto shore, the smooth rhythm of my hands splashing into the water, the breaths that I drew into my mouth and lungs, and the long gurgling of silvery bubbles rolling slowly into the sea. I slid into my pace, and I felt the water below me shudder.

It wasn't a rogue wave or a current. It felt like something else.

It was moving closer. The water was shaking harder and buckling below me.

All at once I felt very small and very alone in the deep dark sea.

Then I heard a sound. I thought it was coming from the ocean's depths.

At first it seemed to be a whisper, then it grew louder, steadily, like someone trying to shout for help but unable to get the words out. I kept swimming and trying to figure out what was happening.

The sound changed. It became stranger, like the end of a scream.

In my mind, I quickly went through a list of the ocean sounds I knew and compared them with what I was hearing. There were no matches.

The hairs on my arms were standing straight out.

Whatever it was, was moving closer.

The ocean was charged with energy. It felt uncertain and expectant, like the air just before an enormous thunderstorm. The water was electric.

Maybe that was it; maybe the water was warning of an approaching squall. Maybe energy from distant winds and torrential rains was being transmitted through the water.

I checked the sky above and the distant horizon.

Both were dull and as black as ink and there wasn't a cloud in the sky.

I lifted my head to see the wave height. The shore break wasn't increasing and there weren't any wind waves. Not even dimples on the ocean's surface. There was no sign of a storm.

It didn't make sense. The energy in the water was intensifying. I felt like I was sitting on a tree branch beside a nest of angry, buzzing bumblebees.

All at once, the sea's surface erupted nearby. There was a rushing and plunking sound.

Excerpted from Grayson by Lynne Cox Copyright © 2006 by Lynne Cox. Excerpted by permission of Knopf, 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.