Blake Pierce - Face of Murder

But not, of course, if it compromised the case. Stopping the killer was still the most important thing.

Zoe returned her attention to the equations while Shelley called the university to get the access she needed. The thing was, she had gone about as far as she could go—with both of them. It was true that there was still the possibility of something missed on the student’s body, but they had checked the professor for themselves.

So, what was she missing?

There was another possibility, of course: that she simply wasn’t advanced enough to solve it. There was a difference between being able to see numbers—distances, dimensions, angles—and being able to solve quantum math problems. There were other skills involved, skills that other people spent their whole lives developing. Zoe might have had a gift, but she had devoted it to the pursuit of killers, not to the study of math.

Which brought another idea to her mind.

She got up, leaving Shelley still chatting with a receptionist on her cell, and carried a sheaf of photographs down the hall to the elevator. Up two floors, and down an identical corridor to the one she had left—except that the rooms on this floor had rather more power exuding from each of them.

Zoe took a breath before knocking on her boss’s door. How many times had she been summoned here, to be chewed out for losing another partner or discharging her firearm?

But this was not like those times, and she entered when bidden, trying not to feel nervous.

With his imposing frame and larger than average musculature, it was easy to see how Special Agent in Charge Maitland would have been intimidating in the field. Criminals would have taken one look at him and then run.

Zoe was trying very hard not to feel the same.

“Sir,” she said, hesitating in the doorframe.

Maitland looked up from his paperwork, then continued scrawling his signature at the bottom of a request. “Go on, Special Agent Prime. Don’t wait out in the corridor all day.”

Zoe stepped forward, letting the door close behind her with a little reluctance. She squared her shoulders, however, and faced him with the straight back she always felt inspired to uphold in his presence. “Sir, it is regarding the case Special Agent Rose and I are working on. The college kid and the professor, found with equations written on their bodies.”

Despite the large caseload which must necessarily have gone through the DC field office, Maitland didn’t skip a beat. “I know it. What do you need?”

“The equations are extremely high-level,” Zoe said, feeling a little like a failure for even admitting they were too much for her. Still, it had to be done. Eyeing the neat ninety-degree angles of everything arranged on Maitland’s desk, instead of watching his expression, she pushed herself onward. “I believe we would do better if we brought in a subject matter expert. Someone who could work on the equations from a professional mathematics standpoint.”

Maitland nodded, then paused in his writing as he realized that she was done. “Do you have someone in mind? Special Agent Rose reminded us that you studied math once upon a time.”

“I do, sir.”

“Good.” Maitland’s attention returned to the paperwork, effectively dismissing her. “Permission granted. Have the paperwork turned in ASAP.”

“Yes, sir.” Zoe turned and almost fled for the door, happy to have such a positive outcome. She was not going to stick around and wait for him to change his mind, by any stretch of the imagination.

There was work to do—and someone very important to bring into the case.

Zoe waited expectantly, watching her mentor examine the images.

“These are… disturbing.” Dr. Applewhite shook her head, holding her lower lip between her teeth for three seconds as she slipped the photograph to the back of the pile in her hands and studied the next one. “I sometimes forget that you have to look at this kind of thing day in and day out. It must take a toll.”

Zoe shrugged. “Dead bodies are dead. It is the not solving them that bothers me.”

“And this is one that you haven’t yet been able to solve.” It was not a question. Zoe had already primed the doctor with the fact that she needed help. Dr. Applewhite knew that it was an open, ongoing case, and that permission had had to be sought for them to even be having this conversation. She understood also that time was of the essence. With every passing hour, it became less and less likely that they would find the person who did this.

The thing about homicides was that the first twenty-four hours were crucial. Everyone knew that. Forty-eight hours without an arrest, and you were starting to head into dangerous territory. The kind of cases that would become episodes of late-night TV shows.

The college kid had been dead for well over forty-eight hours.

“I need to know what it means,” Zoe explained. “Right now, this is the only lead that we have. There does not seem to be any connection between the professor and the student, beyond the fact of their locations. No witnesses, no coverage of surveillance cameras. We have to figure out what kind of message the killer is trying to send if we are going to stop him.”

Dr. Applewhite was frowning down at the images, and she placed them beside Zoe’s notes to run through the calculations Zoe had already made.

“Your working seems sound,” she said, after a while had passed. “I can’t see anywhere else to take it that you haven’t already gone. This is extremely advanced—beyond even the level that I work at.”

Zoe’s heart sunk in her chest. She had been sure, so sure, that Dr. Applewhite would have the answers. Now, it seemed, those hopes were dashed.

She was already thinking through alternatives, trying to figure out what she was going to say to Shelley, when Dr. Applewhite spoke up again.

“I know some people who might be able to help,” she said. “Professors. A couple of mathematicians who work in other fields. If I can show this to them, I might be able to get a bit further with it. This is the kind of challenge that they will all love, so at least we’re bound to get some skilled hands on deck.”

Zoe nodded her approval. “That would be helpful.”

Dr. Applewhite tucked her graying bob behind one ear and looked up, fixing Zoe with that same curious stare now. “How are you holding up on this one? It’s not often a math question comes up that has you stumped.”

Zoe considered lying for a brief moment, but then let her shoulders slump. “A little like a failure. This is my specialty. I should at least be able to work it out. If I cannot, who in the FBI is going to?”

In anyone else’s voice, it would have sounded like a brag. To Zoe, it was pure fact. Analysts and their like might spend all day working with numbers, but they didn’t have the instinctive grasp on them that she did. They couldn’t look at an equation on the page and see the answer as clearly as if it was written out beside it. At least, that was the case for her usually.

This one was something else.

“You can’t be expected to solve everything. No FBI agent in the history of the Bureau ever had a one hundred percent solve rate.”

Zoe smiled a wan smile. “I am sure that there have been examples. Agents who were killed or retired just after solving their first case, for example.”

Dr. Applewhite rolled her eyes. “Trust you to find the loophole. All right, I will make some calls and get these equations out in front of some of my colleagues. I won’t tell them what it’s for—just that it’s urgent and a big challenge. That should intrigue them enough to get them working on it. I will let you know the moment anyone makes a breakthrough.”