And then . . . he never returns. Fillory swallows him whole. Martin is absent from the next two books—A Secret Sea and the last book in the series, The Wandering Dune—and although his siblings hunt for him diligently, they never find him again. (Now it made Quentin think of poor Alice’s brother.) Like most fans Quentin assumed that Plover meant to bring Martin back in the last book of the series, restored and repentant, but Plover died unexpectedly in his fifties while The Wandering Dune was still in manuscript, and nothing in his papers ever suggested an answer to the riddle. It was an insoluble literary mystery, like Dickens’s unfinished Mystery of Edwin Drood. Martin would always remain the boy who vanished into Fillory and never came back.

Quentin thought the answer might have been in the book he’d possessed so briefly, The Magicians, but it was long gone. He’d turned the House inside out and interrogated everybody in it, and by this point he’d given up. Someone at Brakebills must have taken it or tidied it up or lost it. But who, and why? Maybe it hadn’t even been real.

Quentin woke up early that Sunday morning already in fully fledged flight mode. He was spinning his wheels here. He had his new life to get on with. Feeling only the barest required minimum of guilt, he improvised an elaborate fictional confection for his parents—rich roommate, ski chalet in New Hampshire, I know it’s last minute but could he please? More lies, but what could you do, that was how you rolled when you were a secret teenage magician. He packed hurriedly—he’d left most of his clothes at school anyway—and half an hour later he was out on the streets of Brooklyn. He went straight to the old community garden. He walked into the thickest part of it.

He ended up at the back fence, looking through it at the rusting play set in a neighbor’s yard. Could it really be this small? He remembered the garden as practically a forest, but now it looked thin and scraggly. For several minutes he tramped around through the rubble and broken weeds and pumpkin corpses frozen in the act of rotting, back and forth, feeling more and more nervous and embarrassed. What did he do last time? Did he need the book? He must be missing something, but he couldn’t think what. The magic wasn’t happening. He tried to retrace his steps exactly. Maybe it was the wrong time of day.

Quentin went to get a slice of pizza and take stock, praying that nobody he knew would walk by and see him there when he was supposed to be on his way to Mount Alibi in New Hampshire. He didn’t know what to do. The trick wasn’t working. It was all falling away from him. He sat there in a booth with his bags next to him staring at his reflection in the floor-to-ceiling mirrors—why do all pizzerias have mirrored walls?—and reading the police blotter in the Park Slope free weekly. The walls reflected each other, mirrors on mirrors, an infinite curving gallery. And as he sat there, the long, narrow, busy room became still around him, almost without his knowing it. The mirrors became dark, the light changed, the bare tile became a polished parquet floor, and when he looked up from the paper again he was eating his slice alone in the junior common room at Brakebills.