And Buckley looked at him in wonder as Hal mentally scanned the contents of his bike shop and remembered two scrap sheets of corrugated tin he had leaning up against the back wall.

So one hot night my father looked down and didn’t see his son anymore. Buckley was nestled inside his fort. On his hands and knees, he would pull the terra-cotta pots in after him and then prop a board against them that reached almost up to the wavy roof. Just enough light came in to read by. Hal had obliged him and painted in big black spray paint letters KEEP OUT on one side of the plywood door.

Mostly he read the Avengers and the X-Men. He dreamed of being Wolverine, who had a skeleton made of the strongest metal in the universe and who could heal from any wound overnight. At the oddest moments he would think about me, miss my voice, wish I would come out from the house and pound on the roof of his fort and demand to be let in. Sometimes he wished Samuel and Lindsey hung out more or that my father would play with him as he once had. Play without that always-worried look underneath the smile, that desperate worry that surrounded everything now like an invisible force field. But my brother would not let himself miss my mother. He tunneled into stories where weak men changed into strong half-animals or used eye beams or magic hammers to power through steel or climb up the sides of skyscrapers. He was the Hulk when angry and Spidey the rest of the time. When he felt his heart hurt he turned into something stronger than a little boy, and he grew up this way. A heart that flashed from heart to stone, heart to stone. As I watched I thought of what Grandma Lynn liked to say when Lindsey and I rolled our eyes or grimaced behind her back. “Watch out what faces you make. You’ll freeze that way.”

One day, Buckley came home from the second grade with a story he’d written: “Once upon a time there was a kid named Billy. He liked to explore. He saw a hole and went inside but he never came out. The End.”

My father was too distracted to see anything in this. Mimicking my mother, he taped it to the fridge in the same place Buckley’s long-forgotten drawing of the Inbetween had been. But my brother knew something was wrong with his story. Knew it by how his teacher had reacted, doing a double take like they did in his comic books. He took the story down and brought it to my old room while Grandma Lynn was downstairs. He folded it into a tiny square and put it inside the now-empty insides of my four-poster bed.

On a hot day in the fall of 1976, Len Fenerman visited the large safety box in the evidence room. The bones of the neighborhood animals he had found in Mr. Harvey’s crawlspace were there, along with the lab confirmation of evidence of quicklime. He had supervised the investigation, but no matter how much they dug, or how deep, no other bones or bodies had been found on his property. The blood stain on the floor of his garage was my only calling card. Len had spent weeks, then months, poring over a xerox of the sketch Lindsey had stolen. He had led a team back into the field, and they had dug and then dug again. Finally they found an old Coke bottle at the opposite end of the field. There it was, a solid link: fingerprints matching Mr. Harvey’s prints, which were all over his house, and fingerprints matching those on my birth certificate. There was no question in his mind: Jack Salmon had been right from the beginning.

But no matter how hard he looked for the man himself, it was as if George Harvey had evaporated into thin air when he hit the property line. He could find no records with that name attached. Officially, he did not exist.

What he had left behind were his dollhouses. So Len called the man who sold them for him, and who took commissions from select stores, and the wealthy people who ordered replicas of their own homes. Nothing. He had called the makers of the miniature chairs, the tiny doors and windows with beveled glass and brass hardware, and the manufacturer of the cloth shrubs and trees. Nothing.

He sat down among the evidence at a barren communal desk in the basement of the station. He looked through the stack of extra fliers that my father had made up. He had memorized my face, but still he looked at them. He had come to believe that the best hope in my case might be the recent rise in development in the area. With all the land churning and changing, perhaps other clues would be found that would provide the answer he needed.

In the bottom of the box was the bag with my jingle-bell hat. When he’d handed it to my mother, she had collapsed on the rug. He still couldn’t pinpoint the moment he’d fallen in love with her. I knew it was the day he’d sat in our family room while my mother drew stick figures on butcher paper and Buckley and Nate slept toe to toe on the couch. I felt sorry for him. He had tried to solve my murder and he had failed. He had tried to love my mother and he had failed.

Len looked at the drawing of the cornfield that Lindsey had stolen and forced himself to acknowledge this: in his cautiousness, he had allowed a murderer to get away. He could not shake his guilt. He knew, if no one else did, that by being with my mother in the mall that day he was the one to blame for George Harvey’s freedom.

He took his wallet out of his back pocket and laid down the photos of all the unsolved cases he had ever worked on. Among them was his wife’s. He turned them all face-down. “Gone,” he wrote on each one of them. He would no longer wait for a date to mark an understanding of who or why or how. He would never understand all the reasons why his wife had killed herself. He would never understand how so many children went missing. He placed these photos in the box with my evidence and turned the lights off in the cold room.

But he did not know this:

In Connecticut on September 10, 1976, a hunter on his way back to his car saw something shiny on the ground. My Pennsylvania keystone charm. Then he saw that the ground nearby had been partially dug up by a bear. Exposed by the bear were the unmistakable bones of a child’s foot.

My mother made it through only one winter in New Hampshire before she got the idea of driving all the way to California. It was something she had always thought she would do but had never done. A man she met in New Hampshire had told her about the work to be had in wineries in the valleys above San Francisco. It was easy to get, it was physical, and it could be, if you wanted it to be, very anonymous. All three sounded good to her.

This man had also wanted to sleep with her, but she said no. By then, she knew this wasn’t the road out anymore. From the first night with Len in the innards of the mall she had known the two of them weren’t building anything. She could not even really feel him.

She packed her bags for California and sent cards to my brother and sister from every town she stopped in. “Hello, I’m in Dayton. Ohio’s state bird is the cardinal.” “Reached the Mississippi last night at sunset. It certainly is a big river.”

In Arizona, when she was eight states beyond the farthest she had ever been, she paid for her room and brought a bucket of ice with her from the machine outside. The next day she would reach California, and to celebrate she had bought herself a bottle of champagne. She thought of what the man in New Hampshire had said, how he had spent one whole year scraping the mold out of the giant casks that held wine. He had lain flat on his back and had to use a knife to peel back the layers of mold. The mold had the color and consistency of liver, and no matter how hard he bathed he would still attract fruit flies for hours afterward.

She sipped champagne from a plastic cup and looked at herself in the mirror. She forced herself to look.

She remembered sitting in our living room then, with me and my sister, my brother and father, on the first New Year’s Eve that all five of us had stayed up. She had shaped the day around making sure Buckley got enough sleep.