Chapter Text
The conference room door flew open hard enough that the metal handle rattled against the wall and Harper Sloan walked out like the room behind her had caught fire.
The argument still burned in her ears—sharp voices bouncing off sterile walls, the sting of words said too quickly and too harshly to ever be taken back. Her chest felt tight with it, her pulse hammering in the way it did when anger and hurt mixed together into something explosive.
She didn’t look back.
Her boots struck the polished precinct floor in quick, determined strides as she moved down the corridor. Officers passed by, voices murmuring, phones ringing somewhere in the distance, but all of it felt muffled beneath the rush of adrenaline in her veins.
She needed space, air and distance from Aaron before the fight turned into something worse.
“Harper.”
His voice came from behind her. It was firm, controlled but strained.
She kept walking.
“Harper.”
The second time he said her name there was urgency in it, and a moment later footsteps followed.
Before she reached the corner of the hallway, a hand caught her arm.
“Wait—”
Harper spun around immediately.
The reaction was instinctive, sharp as a snap of electricity. His fingers had barely closed around her forearm before she jerked away.
“Don’t.” Her voice came out low and cutting.
She yanked her arm free with enough force that his hand dropped back to his side.
“Don’t touch me right now.”
For a second the hallway fell quiet around them.
Aaron stood still, his expression tight. The usual calm authority that defined him had cracked slightly, frustration and concern bleeding through the controlled surface.
“Harper,” he said again, quieter now. “We need to—”
“No.”
The word came fast and hard.
“We don’t.”
Her eyes were bright with anger, but there was something else beneath it too—hurt she hadn’t managed to bury yet.
“Not right now.”
She turned before he could respond and walked away again, disappearing down the corridor.
Aaron watched her go.
He didn’t try to stop her this time.
After a few seconds he exhaled slowly, running a hand briefly across his face before turning back toward the conference room.
The case wasn’t over.
And the BAU didn’t get the luxury of stopping work because their personal lives had detonated.
—
When Aaron stepped back into the observation room, the atmosphere had shifted.
JJ and Emily had finished their first round of questioning with Daniel Carver. The suspect sat slumped in the interrogation chair across the hall, shoulders hunched forward, his expression sour and defensive.
Spencer stood close to the glass, studying Carver with analytical intensity. Morgan leaned casually against the wall nearby, arms crossed, while Rossi sat at the table flipping through the suspect’s background file.
Morgan looked up first. “Well,” he said dryly, “that was enlightening.”
Aaron’s gaze flicked toward the interrogation room.
JJ folded her arms loosely. “He’s angry,” she said.
Emily nodded. “And resentful.”
“That’s putting it nicely.” Morgan snorted quietly.
JJ continued, “He definitely blames the victims for rejecting him from the financial mentorship program.”
“But,” Emily added, “he’s not our unsub.”
Spencer looked up from the file. “The psychological profile doesn’t match,” he said. “Carver demonstrates impulsive aggression but lacks the behavioural discipline we’ve seen in the murders.”
Morgan gestured toward the glass.
“Guy’s a nasty piece of work,” he said. “But he’s not killing people.”
Aaron absorbed the assessment in silence then he nodded once.
“Release him.”
“Just like that?” Morgan raised an eyebrow.
Aaron’s voice came out sharper than usual. “He’s not our unsub.”
“Alright.” Morgan shrugged.
The team shifted back into investigation mode almost immediately, discussing new leads and timelines. But as the conversation continued, something subtle changed in the rhythm of the room.
Aaron’s demeanour had hardened. He moved through the discussion with mechanical efficiency, assigning tasks and reviewing details with the same methodical focus he always had. But the quiet warmth that usually balanced his leadership—the patience, the understanding—had disappeared. His tone was clipped and his answers were brief.
Emily noticed first and she glanced at JJ across the table who caught the look immediately but neither of them said anything because they both understood exactly why.
—
Several blocks away, Harper Sloan sat alone in her rental car parked along a quiet side street.
She had left the precinct almost half an hour earlier, needing distance from the argument before the anger inside her burned everything else away.
But the silence inside the car hadn’t helped. If anything, it made the memory louder.
Her hands rested loosely on the steering wheel as she stared through the windshield at the slow drift of Los Angeles traffic. Sunlight slanted between buildings, casting long shadows across the street as late afternoon began to slip toward evening.
Her mind replayed the fight again.
Aaron’s voice.
Her own and the exact moment everything had tipped too far.
She closed her eyes briefly, frustration tightening her chest.
God. They had said things neither of them could take back and underneath the anger, grief stirred like an old wound.
When everything felt like it was unravelling, there had always been one person she instinctively wanted.
Her brother.
Mark Sloan.
The thought landed heavy.
Her throat tightened. “I just need you,” she murmured to the empty car.
But Mark was gone and he wasn’t coming back.
Her fingers tightened slightly against the steering wheel before she exhaled slowly and reached for her phone and her contact list filled the screen.
She stared at it for a moment before tapping a name.
Derek Shepherd.
The phone rang twice then his familiar voice came through.
“Harper?” The warmth in his tone was immediate.
“Hey.” She leaned her head back against the seat.
There was a short pause.
“You okay?” Derek asked.
She let out a small breath that almost sounded like a laugh. “That obvious?”
“Only when you call during the middle of a workday.”
She smiled faintly. “I just needed to talk to someone who isn’t currently chasing a serial killer.”
“Well,” Derek said lightly, “you definitely called the right department.”
She glanced out the windshield again. “How’s Seattle?”
“Rainy,” he replied immediately. “Which means Meredith is complaining about it like the sky personally betrayed her.”
Harper huffed a quiet laugh. “Some things never change.”
“Nope.”
Derek shifted the phone slightly. “So how’s life at the BAU?” he asked. “Still keeping my favorite federal agent busy?”
“Always.”
“Still working with the same crew?”
“Yeah.”
“Emily’s still there, right?” Derek asked.
Harper blinked slightly.
“Yeah.”
“Tell her I said hello next time you see her,” he said casually. “She was the person you worked with through all the Doyle mess right?”
Harper leaned her head back against the seat. “Yeah. Feels like a lifetime ago now.”
“I guess undercover work tends to do that.”
Her voice softened slightly. “Emily saved my life more than once back then.”
“I’m aware,” Derek said. “From what I heard, you two were a pretty terrifying team.”
She smiled faintly. “Something like that.”
There was a brief pause before Derek continued. “And Aaron?”
The mention of his name made something in her chest twist. “He’s… working,” she said carefully.
Derek was quiet for a moment. “You two still together?”
Harper rubbed a hand across her forehead. “Yeah.”
“You don’t sound convinced.”
She let out a slow breath.
“We had a fight.”
“Bad one?”
“Yeah.”
Derek hummed thoughtfully. “Those tend to happen when two stubborn people care about each other.”
Harper rolled her eyes slightly. “You sound like Meredith.”
“I’ll take that as a compliment.”
He paused. “For what it’s worth,” he added gently, “I always liked Aaron.”
That surprised her.
“You barely know him.”
“I know the type,” Derek said. “Quiet, serious, carries the weight of the world on his shoulders.”
“That’s him.” She smiled faintly.
“And I know the kind of man who would stand beside you in the middle of a storm.”
The words settled somewhere deep.
Harper didn’t respond immediately.
Derek continued lightly, “Besides, if Emily trusts him, that’s usually a good sign.”
“That’s a fair point.” Harper let out a quiet laugh.
“Speaking of Seattle,” Derek said casually, “everyone still asks about you.”
She looked down at her hands. “Everyone?”
“Meredith asks the most,” he said. “Cristina pretends she doesn’t care but I’ve seen her check the FBI news more than once.”
Harper smiled softly.
“And Callie?”
“She still tells people you were the only person who could match her competitive streak.” Derek laughed.
That pulled a real laugh from Harper.
“And Arizona?”
“She says if you ever come back she’s putting you straight into trauma simulations with the residents.”
The mention of home stirred something complicated inside her chest.
Seattle. It was home to the hospital halls she once loved and the place where so much of her life—and loss—still lived.
“You ever think about coming back?” Derek asked.
The question sat heavy in the air.
“Sometimes,” she admitted quietly.
“And?”
She looked out across the city skyline.
The thought of walking through those halls again, of seeing Mark’s shadow in every corner, made her chest tighten.
“It scares me.”
Derek didn’t push.
“That’s understandable.”
“I’m not ready for that,” she said.
“You don’t have to be,” he replied gently.
Silence stretched for a moment.
Then Harper exhaled slowly and for the first time since the argument, the knot in her chest eased slightly.
Talking to Derek hadn’t fixed anything because Aaron was still at the precinct and they still weren’t speaking.
But hearing a familiar voice reminded her that the world was bigger than the fight she had just walked away from.
-
Back at the precinct, Aaron stood in front of the investigation board reviewing the newest leads with the rest of the BAU.
His voice remained calm and his instructions precise.
But the quiet space between him and Harper Sloan lingered like a fracture running through the centre of the team.
By the time Harper Sloan walked back into the Los Angeles Police Department precinct, the sky outside had deepened into the muted grey of early evening. The building buzzed with the usual late-day rhythm—phones ringing, detectives moving between desks, the steady shuffle of paperwork and conversation—but beneath it all hung the kind of quiet urgency that came when a violent case was nearing its end.
Harper paused just inside the glass doors for a moment, letting her eyes adjust to the fluorescent lights and the familiar layout of the bullpen then she spotted them.
The BAU had regrouped around the conference table they’d commandeered earlier that day. Case files were spread across the surface, photos pinned up on the whiteboard behind them. Spencer leaned over the board, marker in hand as he scribbled something quickly beneath a timeline. Morgan sat perched on the edge of the table, arms crossed while he listened. JJ stood beside him, scanning through a stack of printouts Garcia had sent through moments earlier.
Emily stood near the far end of the table with Aaron standing across from her.
Harper felt the tension immediately.
Not because anyone was acting differently—but because she was.
She forced herself to move.
Her footsteps were steady as she crossed the bullpen floor, though she carefully kept her gaze focused on the board rather than the man standing only a few feet away.
Aaron noticed her the moment she approached. His posture stiffened slightly, but he didn’t say anything and neither did she. Instead, Harper slipped into an empty chair beside Spencer and reached for one of the files without a word.
The silence between her and Aaron sat in the room like a low electrical current and Emily was the one who noticed it immediately. Of course she did.
Her gaze flicked toward Harper briefly—just a quick glance, subtle enough that no one else would have caught it. The tension in Harper’s shoulders, the tight line of her mouth, the deliberate way she avoided looking toward the opposite side of the table.
Emily didn’t say anything but every few minutes, her eyes drifted casually back in Harper’s direction because something had happened and that much was obvious.
But whatever it was, this wasn’t the time to address it because the case had just taken a turn.
Spencer tapped the whiteboard with the marker. “I think we’ve been looking at the wrong rejection,” he said.
Morgan frowned slightly. “Meaning?”
Spencer turned toward them, running his hand through his hair. “Daniel Carver applied to the mentorship program once,” he explained. “But Garcia just found someone who applied five separate times over three years.”
JJ leaned forward slightly. “Who?”
Spencer pointed to the newest name on the board. “Caleb Whitaker.”
Harper looked up.
The name sat circled beneath the victims’ photos.
Emily frowned thoughtfully. “Five applications?”
Spencer nodded. “Each one rejected for increasingly aggressive behaviour toward the program staff.”
Morgan whistled softly. “That’s dedication.”
“Or obsession,” Rossi murmured.
JJ scanned the printout in her hand. “He interacted with three of the victims directly during program intake interviews.”
Aaron stepped closer to the board, his expression sharpening as the pieces began to align. “What else do we know about him?”
Spencer flipped through the file. “Thirty-four years old. Former small business owner. Filed for bankruptcy two years ago.”
“Financial collapse.” Morgan nodded slowly.
“After that,” Spencer continued, “he began applying to financial mentorship programs.”
Harper felt the pieces fall into place. “He believed they could fix his life,” she said quietly.
“And when they didn’t,” Emily added, “he blamed them.”
Aaron’s voice cut through the room with renewed focus.
“Garcia.”
The speakerphone crackled immediately. “Already ahead of you, my brooding leader. Caleb Whitaker currently works maintenance at a shipping warehouse near the port.”
Morgan straightened. “Which gives him access to tools and transport.”
“And isolation,” Rossi added.
Garcia continued, “Also, he didn’t show up for his shift today.”
The room went still.
“Send us the address.” Aaron’s voice hardened.
“On its way.”
Within seconds, everyone was moving. Chairs scraped against the floor as files were gathered and weapons checked. The tension that had hung over the team moments earlier shifted into something sharper—focused urgency.
Even Harper felt it push past the lingering ache in her chest. This was the part of the job where personal issues got shoved aside because someone out there was still dangerous and stopping them mattered more than anything else.
—
The warehouse district near the port stretched for blocks along the water, rows of metal buildings casting long shadows beneath the fading evening light. The air smelled faintly of salt and diesel fuel, cargo trucks rumbling slowly through nearby streets.
Two unmarked SUVs pulled to a stop half a block from Whitaker’s workplace.
Aaron stepped out first with the rest of the team following quickly.
The warehouse itself stood dark and quiet at the end of the street, a large roll-up door half open.
Morgan scanned the area. “No activity.”
Spencer adjusted his grip on his vest. “Statistically speaking, if Whitaker believes law enforcement is closing in, he may attempt to flee.”
“Or escalate,” Emily said grimly.
Aaron surveyed the building for a moment then he nodded. “Morgan, Harper—rear entrance.”
For half a second, Harper hesitated then she nodded. “Got it.”
She moved with Morgan around the side of the building, boots crunching softly over gravel as they approached the back entrance.
The tension between her and Aaron still lingered in the air—but it was buried beneath the sharp focus of the moment.
Inside the warehouse, dim overhead lights flickered weakly with rows of stacked crates creating narrow corridors through the open floor.
JJ and Emily moved in from the front entrance.
Aaron and Rossi followed.
Morgan pushed open the rear door slowly, gun raised. “FBI!” he called. “Show me your hands!” The echo of his voice carried across the empty space.
For a moment, nothing moved.
Then— A sudden crash.
Metal clattered somewhere deeper in the warehouse.
Harper’s head snapped toward the sound. “Left side,” she whispered.
Morgan nodded.
They moved forward cautiously, weaving between the stacked crates.
Another noise.
Footsteps.
Fast. Then a figure burst from behind a stack of pallets.
Caleb Whitaker. His eyes were wide with panic as he bolted across the warehouse floor toward a side exit.
“FBI!” Harper shouted. “Stop!”
Whitaker didn’t. Instead, he shoved a crate aside, knocking it over as he sprinted toward the door.
Morgan moved to cut him off—but Whitaker yanked a knife from his waistband.
“Drop it!” Morgan barked.
Whitaker lunged and everything happened fast.
Harper stepped forward instinctively, raising her weapon. “Don’t do it!”
Whitaker hesitated just long enough for Morgan to tackle him sideways into the concrete floor with knife clattering across the ground.
Whitaker struggled wildly beneath Morgan’s grip, shouting incoherently as Morgan forced his arms behind his back. “Get off me!”
“Yeah,” Morgan grunted as he snapped the cuffs into place. “That’s not happening.”
Moments later the rest of the team rushed in and Aaron stopped beside them, scanning Whitaker carefully as he lay restrained on the floor.
The man’s chest heaved with ragged breaths, his eyes blazing with furious desperation. “You ruined everything,” Whitaker spat.
Aaron’s voice remained steady.“You did that yourself.”
“They rejected me.” Whitaker laughed bitterly.
“They tried to help you,” JJ said.
“They humiliated me,” Whitaker snapped.
The anger in his voice confirmed everything.
Emily exchanged a look with Aaron because they had their unsub.
—
Three hours later, the paperwork was finally finished.
The precinct had quieted significantly as the evening stretched toward night. Detectives moved more slowly now, exhaustion settling in after a long day.
The BAU gathered their things because Whitaker was in custody and the case was finally closed.
Morgan stretched his shoulders. “Man, I’m ready for that jet.”
Spencer nodded. “Statistically speaking, sleep deprivation significantly impacts cognitive function.”
“You saying I’m not thinking straight?” Morgan smirked.
“I wasn’t implying—” Spencer blinked.
Morgan laughed.
Harper packed her files silently, slipping them into her bag.
Across the room, Aaron finished speaking with the lead detective and just for a brief moment their eyes met.
Harper looked away first confirming the silence between them still lingered.
But the team began moving toward the exit together, exhaustion outweighing everything else.
—
The BAU jet waited on the runway beneath a dark sky when they arrived.
The familiar hum of the engines greeted them as they climbed aboard.
Morgan immediately collapsed into one of the seats. “Home sweet home.”
JJ smiled faintly.
Spencer settled near the window with a book.
Rossi poured himself a small glass of scotch.
Emily sat across from Harper.
For a moment she studied her quietly.
“You okay?”
Harper forced a small smile. “Just tired.”
Emily didn’t push but she for sure didn’t look convinced.
Across the cabin, Aaron sat alone reviewing the case file one last time.
The distance between them stretched across the narrow space of the jet.
It was unspoken and unresolved.
As the plane lifted into the night sky, the lights of Los Angeles shrinking beneath them, Harper leaned back in her seat and closed her eyes.
The case was over but the storm between her and Aaron was far from finished.