We told ourselves a seascape that could contain predators and the visitation of arbitrary violence upon the unsuspecting no longer held any sway in our lives. As we emerged from the surf the wind was as sweet as a woman's kiss against the skin.

The girl said her name was Ida Durbin and she had seen us through binoculars from the jetty and paddled after us because a shark had already attacked a child farther up the beach. "You'd do that for anybody?" Jimmie said.

"There's always some folks who need looking after, at least those who haven't figured out sharks live in deep water," she said.

Jimmie and I owned a 1946 canary-yellow Ford convertible, with whitewall tires and twin Hollywood mufflers. We drove Ida back to the jetty, where she retrieved her beach bag and used a cabana to change into a sundress and sandals. Then we went to a beer garden that also sold watermelon and fried shrimp. The palm trees in the garden were strung with tiny white lights, and we sat under the palms and ate shrimp and watched the fireworks explode over the water.

"Are y'all twins?" she asked.

"I'm eighteen months older," I said.

She looked at both of us. "Y'all sure favor for brothers who aren't twins. Maybe your mama just liked the way y'all looked and decided she'd use just one face," she said. She smiled at her own joke, then looked away and studied the tops of her hands when Jimmie's eyes tried to hold hers.

"Where you live, Ida?" he asked.

"Over yonder," she said, nodding vaguely up the main drag.

"You work here in Galveston?" he said.

"For a little while, I am. I got to go now," she replied.

"We'll drive you," he said.

"I'll take a cab. I do it all the time. It's only fifty cents," she said.

Jimmie started to protest. But she got up and brushed crumbs of fried shrimp off her dress. "You boys don't get in no more trouble," she said.

"Boys?" Jimmie said, after she was gone.

Galveston Island was a strange place back in those days. The town was blue-collar, the beaches segregated, the Jax brewery its most prominent industry, the old Victorian homes salt-bitten and peeling. It was a vacation spot for the poor and the marginal and a cultural enclave where the hard-shell Baptist traditions of Texas had little application. Every beer joint on the beach featured slot and racehorse machines. For more serious gamblers, usually oil people from Houston, there were supper clubs that offered blackjack, craps, and roulette. One Sicilian family ran it all. Several of their minions moved out to Vegas in '47 with Benjamin Siegel. One of them, in fact, built the Sands.

But nonetheless there was an air of both trust and innocence about the island. The roller coaster in the amusement park had been officially condemned by the Texas Department of Public Safety, the notice of condemnation nailed on a post hard by the ticket booth. But every night during the summer, vacationers packed the open cars that plummeted down warped tracks and around wooden turns whose spars and rusted bolts vibrated like a junkyard.

Churchgoing families filled the bingo parlors and ate boiled crabs that sometimes had black oil inside the shells. At daybreak, huge garbage scows sailed southward for the horizon, gulls creaking overhead, to dump tons of untreated waste that somehow, in the mind's eye, were refined into inert molecules of harmless matter.

But inland from the carnival rides, the fishing jetties, and the beachfront beer joints and seafood restaurants, there was another Galveston, and another industry, that made no pretense to innocence.

During the next two days we didn't see Ida Durbin on the main drag or on the amusement pier or on any of the jetties, and we had no idea where she lived, either. Then, on Saturday morning, while we were in a barbershop a block from the beach, we saw her walk past the window, wearing a floppy straw hat and a print dress, with a lavender Mexican frill around the hem, a drawstring bag slung from her shoulder.

Jimmie was out the door like a shot.

She told him she had to buy a money order for her grandmother in Northeast Texas, that she had to pick up her mail at the post office, that she had to buy sunburn lotion for her back, that she was tied up all day and evening.

"Tomorrow is Sunday. Everything is closed. What are you doing then?" he said, grinning.

She looked quizzically at nothing, her mouth squeezed into a button. "I reckon I could fix some sandwiches and meet y'all at the amusement pier," she said.

"We'll pick you up," he said.

"No, you won't," she replied.

The next day we discovered a picnic with Ida Durbin meant Vienna sausage sandwiches, sliced carrots, a jar of sun tea, and three Milky Way bars.

"Some folks don't like Viennas," she said, and she pronounced the word "Vy-ennas." "But with lettuce and mayonnaise, I think they're real good."

"Yeah, these are a treat. Aren't they, Dave?" Jimmie said.

"You bet," I said, trying to wash down a piece of simulated sausage that was like a chunk of rubber.

We were on the amusement pier, sitting on a wood bench in the shade of a huge outdoor movie screen. In the background I could hear pinball machines and popping sounds from a shooting gallery. Ida wore a pink skirt and a white blouse with lace on the collar; her arms and the top of her chest were powdered with strawberry freckles.

"Dave and I go back on the quarter boat in the morning," Jimmie said.

She chewed on the end of a carrot stick, her eyes staring blankly at the beach and the surf sliding up on the sand.

"We'll be back on land in ten days," Jimmie said.

"That's good. Maybe I'll see y'all again," she said.

But if there was any conviction in her voice, I did not hear it. Down below, a huge wave crashed against the pilings, shuddering the planks under our feet.

After the next hitch we went back to the motel where our cousin, the manager, who was confined to a wheelchair, let us stay free in return for running a few errands. For the next five days Jimmie had nothing on his mind except seeing Ida. We cruised the main drag in our convertible, night-fished on the jetties, went to a street dance in a Mexican neighborhood, and played shuffleboard in a couple of beer joints on the beach, but nobody we talked to had ever heard of Ida Durbin.

"It's my fault. I should have given her the motel number," he said.

"She's older than us, Jimmie."

"So what?" he said.

"That's the way girls are when they're older. They don't want to hurt our feelings, but they got their own lives to live, like they want to be around older men, know what I mean? It's a put-down for them to be seen with young guys," I said.

Wrong choice.

"I don't believe that at all. She wouldn't have made sandwiches for us. You calling her a hypocrite or something?" he said.

We went back on the quarter boat and worked a job south of Beaumont, stringing rubber cable and seismic jugs through a swamp, stepping over cottonmouths and swatting at mosquitoes that hung as thick as black gauze inside the shade. When we came off the hitch we were sick with sunburn and insect bites and spoiled food the cooks had served after the refrigeration system had failed. But as soon as we got to our motel, Jimmie showered and changed into fresh clothes and started looking for Ida again.

"I found her," he said our second day back. "She's at a music store. She was piddling around with a mandolin, plink, plink, plink, then she started singing, with just me and the owner there. She sounds like Kitty Wells. She promised she'd wait. Come on, Dave."

"Why'd you come back to the motel?"

"To get my wallet. I'm gonna buy us all a meal."

Jimmie had said she was waiting in a music store. It was actually a pawnshop, a dirt-smudged orange building sandwiched between a pool hall and a bar on the edge of the black district. She was sitting on a bench, under the canvas awning, twisting a peg on a Gibson mandolin that rested in her lap. Most of the finish below the sound hole had been worn away by years of plectrum strokes across the wood.