“It was my second year teaching and I wasn’t much older than the kids were. I was trying to prove my authority. My wife eventually made me take the exam down and throw it out. She said it was too mean for a crappy midterm to be any student’s legacy. I didn’t see it that way, at first. She is smarter than I am. I kept that thing framed for a long time. It scared the crap out of my other students, which was really the point.”

“No one wanted to be that bad?” I say.

“Even when I told them how good he became afterward,” he says.

He reaches his hand out for Bailey’s phone, Bailey handing it over, both of us watching as he tries to put something together.

“What did he do?” he says. “Your father?”

He directs his question to Bailey. I think she is going to offer an abbreviated version of what is happening at The Shop and with Avett Thompson—and say that we don’t know the rest of the story yet. We don’t know how he fits into the fraud there, or why it led to him leaving us here alone, trying to put the pieces together. These impossible pieces. But, instead, she shakes her head and tells him the worst part of what Owen has done.

“He lied to me,” she says.

He nods, like that is enough for him. Professor Cookman. First name Tobias. Nickname Cook. Award-winning mathematician. Our new friend.

“Come with me,” he says.

Some Students Are Better Than Others

Professor Cookman takes us back to his office, where he puts on a pot of coffee, and Cheryl, the graduate student manning his desk, is much more attentive than earlier. She powers on several computers on Cook’s workstation as a second graduate student, Scott, starts going through Cook’s filing cabinet—both of them moving as quickly as they can.

While Cheryl downloads a copy of Owen’s photograph onto the professor’s laptop, Scott pulls out an enormous file, slamming the cabinet closed, and then walks back over to the desk.

“The exams you have in here only go back to 2001. These are from 2001–2002.”

“Then why are you handing them to me?” he says. “What am I supposed to do with these?”

Scott looks dumbstruck as Cheryl puts the laptop on Professor Cookman’s desk.

“Go and check the filing cabinets in the archives,” he says. “Then call the registrar and get me the class list from 1995. Also get 1994 and 1996, just to be thorough.”

Scott and Cheryl head out of the office, tasked, and Cook turns to his laptop, Owen’s photograph covering the screen.

“So what kind of trouble is your father in?” he says. “If I may ask.”

“He works at The Shop,” Bailey says.

“The Shop?” he says. “Avett Thompson’s operation?”

“Exactly,” I say. “He did most of the coding.”