I walked in. Much neater than you’d expect Margo to be, but maybe her mom had just picked everything up. To my right, a closet packed-to-bursting with clothes. On the back of the door, a shoe rack with a couple dozen pairs of shoes, from Mary Janes to prom heels. It didn’t seem like much could be missing from that closet.

“I’m on the computer,” Radar said. Ben was fiddling with the shade. “The poster is taped on,” he said. “Just Scotch tape. Nothing strong.”

The great surprise was on the wall next to the computer desk: bookcases as tall as me and twice as long, filled with vinyl records. Hundredsof them. “John Coltrane’s A Love Supremeis in the record player,” Ben said.

“God, that is a brilliant album,” Radar said without looking away from the computer. “Girl’s got taste.” I looked at Ben, confused, and then Ben said, “He was a sax player.” I nodded.

Still typing, Radar said, “I can’t believe Q has never heard of Coltrane. Trane’s playing is literally the most convincing proof of God’s existence I’ve ever come across.”

I began to look through the records. They were organized alphabetically by artist, so I scanned through, looking for the G’s. Dizzy Gillespie, Jimmie Dale Gilmore, Green Day, Guided by Voices, George Harrison. “She has, like, every musician in the world exceptWoody Guthrie,” I said. And then I went back and started from the A’s.

“All her schoolbooks are still here,” I heard Ben say. “Plus some other books by her bedside table. No journal.”

But I was distracted by Margo’s music collection. She liked everything. I could never have imagined her listening to all these old records. I’d seen her listening to music while running, but I’d never suspected this kind of obsession. I’d never heard of most of the bands, and I was surprised to learn that vinyl records were even being produced for the newer ones.

I kept going through the A’s and then the B’s — making my way through the Beatles and the Blind Boys of Alabama and Blondie — and I started to rifle through them more quickly, so quickly that I didn’t even see the back cover of Billy Bragg’s Mermaid Avenueuntil I was looking at the Buzzcocks. I stopped, went back, and pulled out the Billy Bragg record. The front was a photograph of urban row houses. But on the back, Woody Guthrie was staring at me, a cigarette hanging out of his lips, holding a guitar that said THIS MACHINE KILLS FASCISTS.

“Hey,” I said. Ben looked over.

“Holy shitstickers,” he said. “Nice find.” Radar spun around the chair and said, “Impressive. Wonder what’s inside.”

Unfortunately, only a record was inside. The record looked exactly like a record. I put it on Margo’s record player and eventually figured out how to turn it on and put down the needle. It was some guy singing Woody Guthrie songs. He sang better than Woody Guthrie.

“What is it, just a crazy coincidence?”

Ben was holding the album cover. “Look,” he said. He was pointing at the song list. In thin black pen, the song title “Walt Whitman’s Niece” had been circled.

“Interesting,” I said. Margo’s mom had said that Margo’s clues never led anywhere, but I knew now that Margo had created a chain of clues — and she had seemingly made them for me. I immediately thought of her in the SunTrust Building, telling me I was better when I showed confidence. I turned the record over and played it. “Walt Whitman’s Niece” was the first song on side two. Not bad, actually.

I saw Ruthie in the doorway then. She looked at me. “Got any clues for us, Ruthie?” She shook her head. “I already looked,” she said glumly. Radar looked at me and gestured his head toward Ruthie.

“Can you please keep watch for your mom for us?” I asked. She nodded and left. I closed the door.

“What’s up?” I asked Radar. He motioned us over to the computer. “In the week before she left, Margo was on Omnictionary a bunch. I can tell from minutes logged by her username, which she stored in her passwords. But she erased her browsing history, so I can’t tell what she was looking at.”

“Hey, Radar, look up who Walt Whitman was,” Ben said.

“He was a poet,” I answered. “Nineteenth century.”

“Great,” Ben said, rolling his eyes. “Poetry.”

“What’s wrong with that?” I asked.

“Poetry is just so emo,” he said. “Oh, the pain. The pain. It always rains. In my soul.”

“Yeah, I believe that’s Shakespeare,” I said dismissively. “Did Whitman have any nieces?” I asked Radar. He was already on Whitman’s Omnictionary page. A burly guy with this huge beard. I’d never read him, but he lookedlike a good poet.

“Uh, no one famous. Says he had a couple brothers, but no mention of whether they had kids. I can probably find out if you want.” I shook my head. That didn’t seem right. I went back to looking around the room. The bottom shelf of her record collection included some books — middle school yearbooks, a beat-up copy of The Outsiders—and some back issues of teen magazines. Nothing relating to Walt Whitman’s niece, certainly.