Isla kept Zimmerman talking for another twenty minutes.He gave her names—authors he'd read, forums he frequented, a half-dozen people he'd exchanged messages with over the years who shared his interests and any of whom might conceivably know the pattern vocabulary well enough to use it.None of the names felt hot, but they were names, and names were the currency of second days on a case.
"Where were you Tuesday night and last night—Wednesday night into early Thursday morning?"she asked, because the question still had to be asked, and because asking it now, after the conversation had been rebuilt, would read differently than it would have read fifteen minutes ago.
"Here."The word came out steady."I live alone.I work on my site, I read, I sleep.I haven't left this house after dark in months.The cold aggravates my—" he stopped, as if the admission of physical limitation were itself an embarrassment."I have circulation issues.Raynaud's.My fingers go numb below forty degrees.I can barely open a car door in this weather, let alone spend hours in the backcountry doing whatever was done out there."
He held out his hands as evidence—thin, pale, the fingertips already faintly blue from the draft that seeped through the foil-sealed windows.The gesture was matter-of-fact rather than defensive, which somehow made it more persuasive.
No alibi.Living alone meant no one to confirm his presence at home on the nights in question.But no alibi wasn't evidence, and the Raynaud's—the pale, bloodless fingers Isla could see trembling faintly in his lap—would make sustained outdoor work in sub-zero temperatures not just difficult but physically debilitating.The killer had spent hours in deep snow, carving lines with bare precision.Zimmerman couldn't reliably grip a pen in the cold.
"Thank you, Mr.Zimmerman."Isla stood.She kept her voice warm."If you think of anything else—anyone you've interacted with who shares your interest, anyone who's contacted you through your site about the snow circles—please call.You may see something we wouldn't."
He looked at the card she placed on the nearest stack of papers, then at her.Whatever he saw in her face was evidently enough to unclench something, because he nodded, once.
"I'll look through my messages."
"Thank you."
They left.The door closed behind them before they'd reached the porch steps.
The car was cold.Isla started the engine and sat for a moment, the heater groaning, the silence between her and Marshall occupying the space where a debrief should have been.She pulled away from the curb without speaking.Marshall stared through the windshield at Zimmerman's foil-covered windows as they receded in the side mirror.
They made it two blocks before he spoke.
"I shouldn't have pushed him like that."
"No," Isla said."You shouldn't."
"I thought I had him on the contradictions.I thought the pattern of his answers was the evidence."
"It was a real observation.Your timing was off.You threw it at him in a room where he was already feeling cornered, in a house where he's been isolated and defensive for years, and you confused confronting a suspect with earning a confession."She kept her eyes on the road."The observation was good, Marshall.The delivery cost us half an hour."
He absorbed that.She waited for the quiet to reseal itself, which was what he'd done the last three times she'd given him a critical note—the retreat into himself, the processing, the recalibration she'd learned to read as the sound of a young agent learning his craft.
But the quiet didn't reseal.Marshall cleared his throat.
"Can I say something."
"Say it."
"When I've heard you debrief other agents, you tell them what you saw.Not just that the delivery was wrong—you tell them how you would have done it.The specific phrasing.The point in the conversation to introduce a hard question.The way to hold space for a witness you're about to press."He paused."With me, it's always the end state.The thing I got wrong.Never the thing I might have tried instead."
Isla's hands tightened on the wheel.
"I'm not complaining," Marshall went on, carefully."You're a senior agent.I'm new.You don't owe me a seminar every time we walk out of an interview.But I came to this office to learn from you.And lately I've been feeling like I'm being evaluated more than I'm being taught.Like I'm in the running for something I can't quite identify, and I'm not winning."
The words landed exactly where Marshall had aimed them, which was to say: precisely in the gap between what Isla had been doing and what she had told herself she was doing.She could feel her first three responses forming in her chest—three different versions of defense, three different routes back to the position where Marshall was the one with the problem—and she rejected each of them in turn because they were all false, and he would know they were false, and she would know he knew.
She drove for another block.The heater had finally warmed enough that the windshield was beginning to clear, a narrow crescent of visibility widening at the top of the glass.
The truth, when she let herself see it, was not complicated.James had been her partner for nearly three years in this city.James had known how to sit in a car in exactly the right silence, had known when a dead end was a dead end and when it was a waypoint, had known her without her having to explain herself.And since the hospital—since the ventilator's mechanical breath filling the space where his quiet voice used to live—she had been sitting in that empty passenger seat with a different man in it and holding him to the only standard she had: the standard of a partnership that had been built over thousands of hours of shared work.Marshall had been with her for weeks.She had been grading him against years.
Not mentoring.Grading.And finding him wanting, because the person he was being measured against wasn't in the car.
"You're right," she said.
Marshall glanced at her.
"You are right."Isla took a breath."I've been comparing you to someone who isn't here, and that's not your problem to solve.It's mine.And in the meantime, I've been withholding the part of the job that would actually help you—the part I owe you, as your senior on this case."
