Archive of Our Own

The frantic, almost feral energy of a manic work-streak was quintessentially Sherlock—brilliance pushed past the point of reason, where focus sharpened into something brittle. It was the perfect collision: a dopamine high meeting the absolute limit of John Watson’s patience.

The air in 221B felt charged, like it might crack if someone so much as breathed wrong.

Sherlock hadn’t moved from the kitchen table in seventeen hours. One hand flew across his laptop keyboard in relentless bursts, while the other adjusted a microscope slide with surgical precision. His pupils were blown wide, swallowing the grey of his irises, and his skin had taken on that faintly translucent, sleep-deprived pallor—bordering on what John privately termed corpse-chic.

“John!” Sherlock snapped, his voice dry and fraying at the edges. “The sodium levels in the damp soil samples from the backyard—it’s the missing variable. I need toast. Immediately.”

John didn’t look up. He turned a page of his newspaper with deliberate calm. “No.”

Sherlock froze for half a second, like the word hadn’t processed correctly.

“John, I am on the verge of a cognitive breakthrough,” he said, sharper now. “My brain is consuming glucose at an accelerated rate. I require sustenance to maintain deductive velocity.” He gestured wildly, nearly knocking over a beaker of something that looked suspiciously like pond water.

That got a reaction.

John lowered the paper slowly, folding it with precise care. His expression was composed, but there was a dangerous stillness to it.

“Oh, so you’re hungry now?” he said evenly. “After informing me yesterday that eating was ‘boring’ and ‘a waste of precious processing time’?”

“That was yesterday,” Sherlock shot back. “The variables have changed.”

“The variables haven’t changed, Sherlock. My patience has.”

John stood, the chair scraping faintly against the floor. “I’ve spent the last three hours listening to you debate soil pH with the wallpaper. You haven’t slept, you’ve barely blinked, and you haven’t touched the sandwich I left for you—” he pointed toward the neglected plate, “—which is now curling at the edges, by the way.”

“I was busy.”

“I am not your bloody cook, Sherlock!”

The shout rang through the flat, sharp enough to cut through even Sherlock’s tunnel vision. He flinched—actually flinched—as the constant hum of the room surged abruptly into awareness, too loud, too present.

John didn’t soften.

He pointed toward the door, each word clipped. “Order something. Use the phone. You’ve got those miraculous fingers—dial a number. Call the Thai place. Or don’t. Starve for twenty hours, see if I care.”

Sherlock blinked at him, disoriented—not by the words, but by the unfamiliarity of them. John Watson, refusing. John Watson, not automatically compensating.

It didn’t compute.

“I’m going to the shops,” John went on, grabbing his jacket. “For milk. And I am not bringing back anything that requires a plate for you.”

“Twenty hours?” Sherlock echoed faintly, the fight draining out of his voice as quickly as it had surged. “It hasn’t been—surely not twenty.”

“Nineteen hours and forty-two minutes,” John snapped, already halfway to the door. “And if I come back and you’re still glued to that microscope, I’m throwing the soil samples out the window.”

The door slammed.

Silence flooded in behind it—thick, oppressive.

Sherlock sat very still.

For the first time in nearly a day, he became aware of his body in fragments: the stiffness in his spine, the faint tremor in his hands, the unsettling tilt of the room. The hum of the refrigerator grew louder, invasive, like it was pressing directly against his skull.

He looked at the phone.

Then at the sandwich.

He didn’t move.

The decision of what to order felt absurdly complex—like being handed a triple homicide with no evidence, no pattern, nothing to anchor the mind.

His thoughts stuttered, then slowed.

The momentum was gone.

Sherlock leaned back slightly, staring at nothing in particular, listening to the refrigerator’s relentless hum.

The silence didn’t last.

It stretched, yes—long enough for the refrigerator’s hum to turn from background noise into something invasive, something that pressed against Sherlock’s skull like static. Long enough for the numbers in his head to slow from a frantic sprint to a sluggish crawl.

Nineteen hours and forty-two minutes.

He blinked.

That… did sound excessive.

Sherlock turned, finally noticing the sandwich John had mentioned. The bread had gone stiff at the edges, the filling slightly sunken in on itself. Unappealing. Inefficient. Cold.

He stared at it.

Then, with visible distaste, pushed it two inches further away.

“No,” he muttered. “We can do better than that.”

The words seemed to jumpstart something. A different kind of focus—less frantic, more deliberate. He stood abruptly, swaying just slightly before catching himself on the edge of the counter.

“Stability compromised,” he noted aloud. “Nutritional deficit confirmed.”

A pause.

Then, almost defensively: “Not fatal.”

Sherlock moved toward the kitchen with the same intensity he applied to crime scenes, opening cupboards with quick, precise movements. Pasta. Dry. Acceptable. Tomato base—there, shoved behind something expired. Garlic. Olive oil.

He hesitated at the stove.

This wasn’t deduction. There was no thrill in it, no chase. Just… steps. Repetitive, predictable steps.

He exhaled sharply.

“For glucose,” he reminded himself, as if that justified the entire endeavor.

Water went into a pot. Flame on. Too high—he adjusted it automatically. His hands moved with competence that didn’t match his usual complaints about cooking. Efficient cuts of garlic. Oil heating at precisely the right moment. Pasta dropped into boiling water without a splash.

He worked quickly. Not carelessly—never that—but with an economy of motion that suggested this wasn’t unfamiliar territory.

By the time the sauce thickened, the room had stopped spinning.

Mostly.

—

The door opened with a firm push.

“I swear, if you’re still—”

John stopped mid-sentence.

The air didn’t smell like chemicals. Or dust. Or whatever unholy combination Sherlock usually produced during experiments.

It smelled like food.

Warm. Garlicky. Real.

Sherlock stood at the stove, back half-turned, stirring with a wooden spoon. His sleeves were rolled up, hair even more chaotic than usual, but there was something… grounded about him now.

John blinked. “What the hell—”

“I deduced,” Sherlock said without turning, “that continued starvation would result in decreased cognitive efficiency and potential collapse. Highly inconvenient.”

John shut the door slowly. “You’re… cooking.”

“I am executing a basic nutritional protocol.”

“That’s not—” John stepped closer, peering into the pan. “That’s pasta.”

“Yes.”

“With actual sauce.”

Sherlock turned slightly, just enough for John to catch the faintest flicker of something in his expression. Not quite smug. Not quite uncertain.

“Sit,” Sherlock said, gesturing vaguely toward the table. “It’s nearly done.”

John didn’t move for a second.

Then, cautiously, he sat.

Sherlock plated the pasta with surprising neatness. No mess. No chaos. Just a simple, well-prepared dish placed in front of John like it was evidence in a case.

John stared at it.

Then at Sherlock.

Then back at the plate.

“…Right,” he said, picking up the fork like he expected it might explode.

He took a bite.

Paused.

Chewed.

Another bite, slightly faster this time.

Then—

“Mm.”

Sherlock’s head snapped up.

John took a third bite, more decisive. “Mm. That’s—” he swallowed, pointing with his fork, “—that’s actually delicious.”

There was a beat.

Sherlock looked away almost immediately, but not before the shift happened—subtle, but unmistakable. His posture straightened just slightly. Shoulders less tense. Mouth twitching at the corner like he was suppressing something.

“Obviously,” Sherlock said, aiming for dismissive and landing somewhere closer to restrained pride. “It’s not difficult. Heat application, timing, basic chemistry.”

John narrowed his eyes. “Since when do you know how to cook?”

Sherlock hesitated just a fraction too long.

Then, quieter—almost offhand, but not quite: “I do know how to cook.”

John raised a brow.

Sherlock added, a bit sharper now, reclaiming ground, “I simply choose not to. It’s inefficient. Time-consuming. Entirely unnecessary when alternatives exist.”

John took another bite. “You’ve been living off takeaway and insults for months.”

“Yes, well,” Sherlock said, folding his arms, “I don’t like wasting too much time on it.”

A pause.

Then, with a small, unmistakable edge of a gotcha in his tone:
“I cook when it’s required.”

John stared at him.

Then gestured with his fork at the plate. “So this is what—an emergency protocol?”

Sherlock didn’t answer immediately.

Instead, he glanced—just briefly—at John’s plate. At the fact that he was eating. That he hadn’t pushed it away. That he’d said delicious.

Then Sherlock looked back up, expression carefully neutral.

“I do know how to cook,” he repeated, a touch firmer now, “to ensure I didn’t starve.”

John blinked.

Once.

Twice.

Then—“The hell you do.”

Sherlock’s chin lifted a fraction. “I do.”

“You absolutely do not.”

“I have just provided empirical evidence.”

“You made pasta once, Sherlock, that doesn’t make you—”

“It was not ‘once,’” Sherlock cut in. “I possess the skill. I simply—”

“—refuse to use it because it’s ‘boring,’ yes, I’ve heard the speech—”

“—because it is inefficient—”

“—you nearly passed out over a microscope—”

“—a temporary lapse—”

“—nineteen hours—”

“—not twenty—”

John dropped his fork with a clatter, exasperated. “You’re unbelievable.”

Sherlock, maddeningly, looked faintly pleased.

“Mm,” he said, glancing at the plate again. “And yet—”

John pointed at him. “Don’t. Don’t you dare say ‘and yet’.”

Sherlock didn’t finish the sentence.

He didn’t have to.

The emptying plate said enough.