"We weren't always homeless," Zero said. "I remember a yellow room."

"How old were you when you…" Stanley started to ask, but couldn't find the right words. "… moved out?"

Zero spoke slowly, as if searching his brain for memories and clues. "And then later I know we lived on the street, but I don't know why we left the house. I'm pretty sure it was a house, and not an apartment. I know my room was yellow."

"I don't know. I must have been real little, because I don't remember too much. I don't remember moving out. I remember standing in a crib, with my mother singing to me. She held my wrists and made my hands clap together. She used to sing that song to me. That one you sang… It was different, though…"

It was late afternoon. They were resting in the shadow of the Thumb. They had spent the morning picking onions and putting them in the sack. It didn't take long, but long enough so that they had to wait another day before heading down the mountain.

They wanted to leave at the first hint of daylight, so they'd have plenty of time to make it to Camp Green Lake before dark. Stanley wanted to be sure he could find the right hole. Then, they would hide by it until everyone went to sleep.

They would dig for as long as it seemed safe, and not a second longer. And then, treasure or no treasure, they'd head up the dirt road. If it was absolutely safe, they'd try to steal some food and water from the camp kitchen.

"I'm good at sneaking in and out of places," Zero had said.

Stanley thought about his own parents. In her last letter, his mom was worried that they might be evicted from their apartment because of the smell of burning sneakers. They could easily become homeless as well.

"Remember," Stanley had warned. "The door to the Wreck Room squeaks."

Now he lay on his back, trying to save his strength for the long days ahead. He wondered what happened to Zero's parents, but he didn't ask. Zero didn't like answering questions. It was better to just let him talk when he felt like it.

An image appeared in his head of his parents hugging each other and crying. He tried not to think about it.

Again, he wondered if they'd been told that he ran away from camp. Were they told that he was dead?

Instead he tried to recapture the feelings he'd had the night before -- the inexplicable feeling of happiness, the sense of destiny. But those feelings didn't return.

He just felt scared.

"This is where I found the shovel," Stanley said, pointing out a patch of weeds.

"You were light," Stanley said. "You'd already thrown up everything that was inside your stomach."

He shifted the sack from one shoulder to the other. It was heavy. He stepped on a loose rock, slipped, then fell hard. The next thing he knew he was sliding down the steep side of the mountain. He dropped the sack, and onions spilled around him.

Zero turned and looked up toward the top of the mountain. "That's a long way."

"Are you all right?" Zero asked from above.

He slid into a patch of weeds and grabbed onto a thorny vine. The vine ripped out of the earth, but slowed him enough so that he was able to stop himself.

The next morning they headed down the mountain. They'd dunked their caps in the water hole before putting them on their heads. Zero held the shovel, and Stanley carried the sack, which was crammed with onions and the three jars of water. They left the pieces of the broken jar on the mountain.

The jars hadn't broken. The onions had protected them, like Styrofoam packing material. "Glad you didn't do that when you were carrying me," Zero said.

They'd lost about a third of the onions, but recovered many of them as they continued down the mountain. When they reached the bottom, the sun was just rising above the lake. They walked directly toward it.

They climbed down into the frying pan. It was a different spot from where they had climbed up. They eased themselves down from one ledge to another, and let themselves slide in other places, being especially careful with the sack.

Stanley groaned as he pulled a thorn out of the palm of his hand. "Yeah," he said. He was all right. He was worried more about the jars of water.

Zero climbed down after him, retrieving the sack along the way. Stanley pulled some thorns out of his pant legs.

Soon they stood on the edge of a cliff, looking down on the dry lake bed. Stanley wasn't sure, but he thought he could see the remains of the Mary Lou off in the distance.

"You thirsty?" Stanley asked.

"No," said Zero. "How about you."

"No," Stanley lied. He didn't want to be the first one to take a drink. Although they didn't mention it, it had become a kind of challenge between him and Zero.

"No," said Stanley.

"You thirsty?" Zero asked.

"Because you have three full jars of water," said Zero. "I thought maybe it was getting too heavy for you. If you drink some, it will lighten your load."

Stanley could no longer see the Mary Lou, but headed in what he thought was the right direction. As the sun rose, so did the familiar haze of heat and dirt.

"I'm not thirsty," said Stanley. "But if you want a drink, I'll give you some."

They walked for what seemed like a very long time, and still never came across the Mary Lou. Stanley was pretty sure they were heading in the right direction. He remembered that when they left the boat, they were headed toward the setting sun. Now they were headed toward the rising sun. He knew the sun didn't rise and set exactly in the east and west; more southeast and southwest, but he wasn't sure how that made a difference.

"I'm not thirsty," said Zero. "I was just worried about you."

His throat felt as if it was coated with sandpaper. "You sure you're not thirsty?" he asked.

Stanley smiled. "I'm a camel," he said.

Zero was the first to spot the Mary Lou, maybe a quarter mile away, and just a little off to the right. They headed for it.

"You know I'm not thirsty," Stanley said, as he unscrewed the lid. "I'm just drinking so you will."

They clinked the jars together and, each watching the other, poured the water into their stubborn mouths.

"I'm just drinking so you will," said Zero.

"I don't know what happened to my mother," Zero said. "She left and never came back."

Stanley had the feeling that Zero was explaining things to himself.

When they did finally take a drink, they agreed to do it at the same time. Zero, who was now carrying the sack, set it down and took out two jars, giving one to Stanley. They decided to save the canteen for last, since it couldn't accidentally break.

It wasn't even noon yet when they reached the boat. They sat against the shady side and rested.

"She couldn't always take me with her," Zero said. "Sometimes she had to do things by herself."

Stanley peeled an onion.

"Not me," said Zero. His voice was dry and raspy.

"She'd tell me to wait in a certain place for her. When I was real little, I had to wait in small areas, like on a porch step or a doorway. 'Now don't leave here until I get back,' she'd say. I never liked it when she left. I had a stuffed animal, a little giraffe, and I'd hug it the whole time she was gone. When I got bigger I was allowed to stay in bigger areas. Like, 'Stay on this block.' Or, 'Don't leave the park.' But even then, I still held Jaffy."

"And then one day she didn't come back," Zero said. His voice sounded suddenly hollow. "I waited for her at Laney Park."

Stanley guessed that Jaffy was the name of Zero's giraffe.

"You know the playscape?" asked Zero.

"Laney Park," said Stanley. "I've been there."

"Yeah. I've played on it."

They ate four onions apiece and drank about half a jar of water. Stanley stood up and looked around. Everything looked the same in all directions.

"I waited there for more than a month," said Zero. "You know that tunnel that you crawl through, between the slide and the swinging bridge? That's where I slept."

"Did you ever find him -- it?"

"When I left camp, I was heading straight toward Big Thumb," he said. "I saw the boat off to the right. So that means we have to turn a little to the left."

They headed out. It was Stanley's turn to carry the sack.

For a moment, Zero didn't answer. Then he said, "He wasn't real."

Zero was lost in thought. "What? Okay," he said.

"Some kids had a birthday party," Zero said. "I guess it was about two weeks after my mother left. There was a picnic table next to the playscape and balloons were tied to it. The kids looked to be the same age as me. One girl said hi to me and asked me if I wanted to play. I wanted to, but I didn't. I knew I didn't belong at the party, even though it wasn't their playscape. There was this one mother who kept staring at me like I was some kind of monster. Then later a boy asked me if I wanted a piece of cake, but then that same mother told me, 'Go away!' and she told all the kids to stay away from me, so I never got the piece of cake. I ran away so fast, I forgot Jaffy."

"You were heading toward Big Thumb when you saw the boat off to your right," said Zero. "That means we should have turned right when we left the boat."

"No, this is right," said Stanley.

Stanley thought again about his own parents, how awful it would be for them to never know if he was dead or alive. He realized that was how Zero must have felt, not knowing what happened to his own mother. He wondered why Zero never mentioned his father.

Sometime in the middle of the afternoon, a cloud drifted across the sky and blocked out the sun. It was a welcome relief. Once again, Stanley felt that destiny was on his side.

Zero drew a diagram in the dirt.

"Hold on," Zero said, stopping abruptly. "We're going the wrong way."

Stanley still wasn't sure.

"We need to go this way," Zero said, first drawing a line on the map and then heading that way himself.

"You sure?"

Stanley followed. It didn't feel right to him, but Zero seemed sure.

Zero stopped and held out his arm to stop Stanley, too.

"Listen," Zero whispered.

Stanley didn't hear anything.

They walked slowly and quietly, aware that sounds travel in both directions.

They continued walking very quietly and Stanley began to make out the faint sounds of Camp Green Lake. They were still too far away to see the camp, but he could hear a blend of indistinct voices. As they got closer he occasionally could hear Mr. Sir's distinctive bark.

Stanley nodded. He checked to make sure there was nothing living in it, then climbed down into a hole. Zero climbed into the one next to him.

They approached a cluster of holes. "Let's wait here, until they go in," said Zero.

The sun cut through the cloud, and Stanley felt its rays beating down on him. But soon more clouds filled the sky, shading Stanley and his hole.

He waited until he was certain the last of the campers had finished for the day.

Despite having gone the wrong way for a while, it hadn't taken them nearly as long as Stanley had expected. Now, they just had to wait.

Then he waited a little longer.

"That's the one," he whispered, pointing out the hole where he had found the gold tube. It was still about fifty yards away, but Stanley was pretty sure it was the right hole. There was no need to risk going any closer.

They climbed down into adjacent holes, and waited for the camp to fall asleep.

As quietly as possible, he and Zero climbed up out of their holes and crept toward camp. Stanley held the sack in front of him, cradled in his arms, instead of over his shoulder, to keep the jars from clanking against each other. A wave of terror rushed over him when he saw the compound -- the tents, the Wreck Room, the Warden's cabin under the two oak trees. The fear made him dizzy. He took a breath, summoned his courage, and continued.