Prologue The road to Honolua Bay was red dirt against a gray sky, and it wound up the bluff in a series of steep switchbacks. I pulled over at the top, where the grade leveled off in a clearing. Usually this lookout was packed with cars, trucks, surfers scouting the break, tourists taking photos, but on this storm- tossed day no one else was around. I got out and walked to the edge of the embankment. Below me, small waves broke on jagged lava rocks, their crests whipped white by the wind. Low clouds pressed down, turning the bay--a crescent that usually glimmered in a spectrum of blues, from pale aqua to inky cobalt--a dull slate color. Even on brighter days, Honolua was a heavy spot. In centuries past the bay was a place of wor- ship for Hawaiians, who pushed off from its lee in their voyaging canoes and made offerings to their gods in stone-heaped heiaus above its shoreline.

There were no wide sandy beaches here, just a jigsaw of rocks tumbling down to the water, disappearing beneath the surface where they formed a reef, shallow at first, then dropping off to a darker realm. Conditions were crummy, but I had driven a long way to get here and this particular bay was known for its marine beauty, its profusion of corals and creatures, so I didn''t want to leave without at least get- ting wet. I wouldn''t have another chance for a long while: by tomor- row at this time I would be flying back to New York City. I was aware that a recent flurry of shark attacks had people thinking twice about going into the water alone, or even at all. Suddenly, it seemed, every- one on Maui had realized they shared the ocean with large, occasion- ally snappish beasts. Around the island there was a deep need for a clear explanation--Too many sea turtles? Not enough fish? Climate change? Were the planet''s poles, perhaps, flipping?--some way to figure out the situation, wrap it up, get back to a time when sharks didn''t occupy the headlines every other day. I stood there in the wind considering my options, and after a few moments spent listening to my mind spin tales of lost limbs, sheared arteries, nothing left of me but a few scraps of bathing suit, I picked my way down the path and across the rocks, stepped into the water, and began to swim across the bay. In the water I would only be as alone as I felt on land, anyway.

If something happened to me out here, I wasn''t sure I cared. I had lived with that feeling, a dull indifference to pretty much everything, for almost two years, since my father had died of a heart attack. He was seventy-one years old and athletic and strong, and when his heart''s electrical system seized up, he had been at our family''s summer cottage, walking down to the dock to take his seaplane out for a spin. The doctors said it probably took him five seconds to die. In some dim, distant corner of my mind I had always known, as every person does, that my father wouldn''t be around forever, but the idea of losing him was so huge and overwhelming that I never gave it any space. It lived inside my head as the most horrifying thing I could possibly imagine, the monster I hoped never to face. By the time I hit my forties--divorced, childless by choice, restless by nature--I knew that my father was the central figure in my life, the rock, the anchor, the wise man whose presence allowed me to roam the world making mistakes and having adventures because I could always trust he''d be there at the end to help me make sense of it all. I could no more imagine a life without him than I could imagine life without my torso.

And yet, here I was. But a strange thing happens when your worst nightmare is real- ized: nothing much is left to scare you. After the initial tsunami of grief, I found myself walking calmly into situations that would have previously terrified me: a solo swim, at dusk, in prime tiger shark ter- ritory, for instance. Fear was replaced by an ever-present numbness. As I headed across the mouth of the bay I veered slightly south, out to sea, until I was a half mile offshore. Treading water, I cleared my goggles and looked around. I could faintly see the bottom, unper- turbed and sandy, and conditions were smoother out here, so I didn''t turn back. I kept swimming.

Some people crave illicit substances when upset; my drug of choice is saltwater. The ocean''s vast blue country was either peace or oblivion, I wasn''t sure which, but both of those possibilities worked for me. I was about to head back when a movement caught my eye: a large, shadowy body passed diagonally below me. Then, a jutting dorsal fin; beside it something white flashed. Streaks of sunlight had filtered through the clouds and suddenly the water was illuminated. My adren- aline surged as the creatures revealed themselves. It was a pod of spinner dolphins, forty or fifty animals, swim- ming toward me. They materialized from the ocean like ghosts, shim- mering in the ether.

One moment they were hazily visible, then they were gone, then they reappeared on all sides, surrounding me. I had never been this close to dolphins before, and I was amazed by their appearance. One of the bigger spinners approached slowly, watching me. For a moment we hung there in the water and looked at one another, exchanging what I can only describe as a profound, cross- species greeting. His eyes were banded subtly with black, markings that trailed to his pectoral fins like an especially delicate bank robber''s mask. I wondered if he was the pod''s guardian, if the others followed his lead. The dolphins were traveling in small but distinct clusters-- couples, threesomes, klatches of four or five--and within those little groups they maintained close body contact. I saw fins touching like handholding, bellies brushing across backs, heads tilted toward other heads, beaks slipped under flukes.

The entire group could have darted away in an instant, but they chose instead to stay with me. Spinners are known for their athletics, rocketing out of the water in aerial leaps whenever the urge strikes, but these dolphins were relaxed. They showed no fear, despite the pres- ence of several baby spinners tucked in beside their mothers, replicas the size of bowling pins. The dolphins had simply enfolded me in their gathering, and I could hear their clicks and buzzes underwater, their cryptic aquatic conversation. I dove ten feet down and the big dolphin appeared beside me again, even closer. He had coloration like a penguin''s, dark on top and tuxedo white on his belly, with a long, slender beak. At eight feet long he was a powerful animal, but nothing in his body language suggested hostility. We stayed together for maybe ten minutes but the meeting felt eternal, as though time were suspended in the water with us.

The ocean rose and fell rhythmically, almost hypnotically, but I had no point of refer- ence, no horizon. There was no land, no sky. Everything glowed, as if viewed through a lush blue prism. The dolphins watched me watching them. They moved with an unearthly grace, as though they were more presence than form. I swam with the spinners until they headed into deeper waters, where the light fell off to nowhere in long, slanting rays. The last thing I saw before they vanished back into their world was their tails, moving in unison. After my encounter with them, I thought of the dolphins often.

Not just for hours or days afterward, but for weeks and months. I thought of them at night as I was going to sleep--remembering their languid swimming motions made me relaxed and drowsy and calm. I thought of the dolphins after I left Hawaii and returned to Manhattan, where life was anything but relaxed and drowsy and calm, and where the luminous blues of the Pacific Ocean were a distant memory. In my thirty-sixth-floor office, in a towering glass and steel building in the city''s midtown, I thumbtacked pictures of dolphins to the wall behind my desk so I could look at them while I made phone calls. However brief my dolphin visitation had been, it was stuck to me, lodged inside my head. It was as though I''d been hit by lightning and that one strike had zapped clean through my brain, replacing its usual patterns and wavelengths and nerve impulses with a dolphin highlight reel. I couldn''t forget the way the pod had sized me up, or their pecu- liar squeaking, creaking language, or how ridiculously fun it was to just cruise along with them. I got the impression there was somebody home behind each set of eyes, and the effect was surreal.

I''d met other intriguing sea creatures, some shy and some lordly, some beautiful and some that only Mother Nature could love, but none of them had the same presence as the dolphins--not the Buddha-faced puffer fish with its wise eyes and tiny, whirring fins, or the spotted eagle ray that resembled an alien spacecraft, or the bullheaded ulua, a muscular game fish you wouldn''t want to meet in a dark alley. Next to the fluid, social dolphins, the great white sharks I''d seen looked so metallic I thought they must have rivets. They were undersea Hindenbergs, majestic but not heartwarming, and if you had a personal encounter with one of them it was unlikely to be a calming experience. At the risk of falling down the rabbit hole--a place you can eas- ily go with dolphins, I would soon learn--my most enduring impression was how otherworldly the animals were. As they swam by me, they seemed to exist in a more hazily defined realm than our own hard- edged terrestrial one. They inhabited what ancient Oceanic peoples called "the Dreamtime," a gauzy, blissful place located somewhere between our generally-agreed-upon.