The request landed between them like a dropped coin—not heavy, but undeniable in its presence.
Soren let the silence stretch for exactly three seconds before nodding.
“Workshop at four-thirty,” he said, already turning toward the door.
Momo’s exhale carried the crisp satisfaction of a problem acknowledged, if not yet solved.
“You’ll need to see the handbooks.
The Commission’s tolerances are tighter for—”
“Load-bearing applications,” Soren finished without looking back.
He’d memorized both sets of standards last winter, back when the merged bureaucracy first started tripping over its own paperwork.
His fingers traced the scar on his thumb through his pocket lining.
“Your tools measure thickness?”
“To the micron.” Momo matched his pace as they merged into the hallway traffic.
“But spectrometry requires lab equipment I can’t—”
“Don’t need it.” A first-year ducked under Soren’s arm with a muttered apology; he sidestepped without breaking stride.
“Just bring your seventh attempt.
The sixth one crystallized wrong.”
Momo’s shoes clicked to a halt on the tile.
“You felt that from across the room?”
Soren shrugged, already halfway to his next class.
Iron had textures—the Commission’s blend rolled smooth as river stones, while the Council’s mix always carried the faint metallic aftertaste of nineteenth-century Sheffield forges.
He didn’t bother explaining.
They agreed to meet at the MHA-side workshop after the day’s last class.
The workshop was a small room off the practical wing.
Soren pushed the door open with his shoulder, letting it click shut behind him as he scanned the space—workbench bolted to the floor, creation pad humming faintly under standby power, measurement tools arranged with clinical precision.
The iron registered as moderate: workbench frame, caliper jaws, the standing rack’s hollow tubing.
Nothing unexpected.
Momo stood with her back to him, already slotting references into place.
Both handbooks lay splayed like dissected textbooks, their laminated emergency procedures gleaming under the workshop lights.
Her notebook occupied the remaining corner of the workbench, its pages dense with chemical formulae and stress calculations.
Between them, she smoothed a printed comparison chart—three weeks of cross-referencing distilled into a single laminated sheet.
Soren took the stool opposite her, hands still in his pockets.
The scar on his thumb pressed against his keys through the fabric.
She explained her difficulty in about three minutes.
The two handbooks called for different iron compositions.
Momo tapped the Commission’s manual—its pages pristine, its standards rigid.
“Their alloy runs leaner,” she said, sliding her fingertip down the column of specifications.
“Point-four percent carbon max, silicon under point-two-five.” Her nail clicked against the laminated sheet as she switched to the Council’s handbook, its edges worn from use.
“Theirs wants point-five to point-six carbon, with manganese substitutions permitted.” She exhaled through her nose, a controlled release of frustration.
“I can hit either specification alone.
But when I try blending them—”
Soren watched the scarred knuckle of her index finger trace the discrepancy between tolerance tables.
The Council’s dimensional allowances ran looser by point-oh-two millimeters, their load-bearing calculations accounting for magical reinforcement variables the Commission’s engineers didn’t recognize.
“Third attempt crystallized with stress fractures,” Momo continued.
“Fifth one passed tensile tests but failed magnetic resonance.” Her thumb brushed the creation pad’s activation rune absentmindedly.
“My calipers measure thickness to the micron.
The hardness tester verifies yield strength.” She met his eyes across the workbench, the overhead lights catching the determined set of her jaw.
“But without lab-grade spectrometry—”
Soren knew the pause wasn’t hesitation.
It was precision.
“—I can’t verify the alloy percentages mid-process.” Momo closed the handbooks with twin thuds.
“Which means I can’t adjust the mental composition in real time.” She gestured to the rack of rejected beams, their surfaces dull where the crystalline structure had misaligned.
“I need your Quirk as a feedback loop.
Tell me what the iron *is*, not just what it looks like.”
The seventh beam lay between them on the workbench, its edges milled perfect, its composition still unknown.
Soren let his awareness skim across its surface—the carbon distribution uneven, the manganese clustering at the stress points.
Council alloy pretending to be Commission standard.
Close, but not correct.
Her measurement tools could verify dimension but not composition.
She created the first beam on the creation pad.
The metal shimmered into existence with the quiet *hiss* of lipid conversion—one meter of precisely dimensioned steel cooling almost instantly in the workshop’s climate-controlled air.
Soren’s awareness prickled the moment its atomic structure stabilized, the iron’s signature flaring across his senses like a struck match.
“Carbon point-four-three,” he said, eyes unfocused as he parsed the alloy’s composition.
The beam’s surface temperature registered as irrelevant background noise.
“Manganese point-one-nine.” His thumb pressed harder against his pocket lining, the scar’s texture mapping onto the uneven carbon distribution.
“Silicon point-two-eight.”
Momo’s stylus hovered over her notebook.
“That exceeds the Commission’s silicon cap by point-oh-three.”
Soren nodded without looking up.
“Dimensional checks out, though.
Width within point-oh-one millimeters of both specs.”
Her stylus tapped the hardness tester’s readout—confirming yield strength—before scribbling a string of figures.
The notebook’s grid paper swallowed her precise handwriting as she logged the discrepancies against both handbooks’ tables.
Soren watched her underline the silicon value twice, the ink darker where she’d pressed down.
The composition was close to the Hero handbook but had too much silicon.
She adjusted her mental composition for the second beam.
The creation pad hummed again, its runes flaring blue as another meter of steel materialized—this time with a slightly duller sheen where the silicon content dropped.
Soren’s awareness prickled at the shift before the beam finished cooling.
“Carbon point-four-seven,” he murmured, tracing the imbalance with his scar.
The manganese clustered tighter near the beam’s midpoint, leaving the ends softer than either handbook preferred.
“Silicon point-two-one.
Bracketing.”
Momo’s stylus hovered, then stabbed the notebook. Find the original chapter at g.com.
“Council’s carbon range starts at point-five.” She tapped the hardness tester again—its needle settling lower than the first beam’s reading.
“But now we’re over their minimum.”
Soren nodded toward the rack.
“Fifth attempt will crystallize clean if you nudge the manganese toward the edges.” His fingers twitched in his pockets, mapping the atomic misalignment he couldn’t touch.
“Like spreading butter.”
Four more beams followed in steady succession—each one born from Momo’s tightening calculations, each one measured by Soren’s unforgiving senses.
The third beam’s carbon distribution evened out but picked up a sulfur taint from some subconscious memory of old railroad steel.
The fourth overcorrected into brittleness, its crystalline lattice snapping audibly under the hardness tester’s probe.
The fifth beam *almost* passed magnetic resonance until Soren caught the telltale flicker of vanadium trace elements—leftover contamination from Momo’s morning practice with spring alloys.
By the sixth attempt, her forehead gleamed under the workshop lights.
She wiped her palms on her skirt before activating the creation pad again.
The beam emerged with a muted *ping*, its surface flawless under the calipers’ inspection.
Soren’s breath caught.
The iron sang—carbon threads woven tight as a spider’s web, manganese dispersed like scattered gunpowder grains.
“Point-five-two carbon,” he said, softer now.
“Silicon point-two-four.” His thumb lifted from his pocket involuntarily.
“Dead center.”
Momo’s stylus froze mid-correction.
She looked from the hardness tester’s perfect readout to Soren’s rare, slight smile.
The seventh beam met both handbooks within tolerance.
Momo wrote the successful composition into her notebook in detail, her stylus moving in tight, economical strokes that mirrored the precision of the alloy itself.
The numbers lined up—carbon 0.52%, silicon 0.24%, manganese 0.22%—each digit pressed into the grid paper with the same force she’d used to press the beam into existence.
“Thank you,” she said, closing the notebook with one hand while the other tapped the hardness tester’s final readout into her tablet.
Her voice carried the same measured calm as her calculations, but her fingers lingered on the seventh beam’s smooth surface.
“I couldn’t have verified the gradients without you.”
Soren shrugged, his awareness already retracting from the workbench’s iron like a tide pulling back.
“Your sixth attempt had the ratios.
Just needed the distribution.”
Momo slid the handbooks into her bag with practiced efficiency.
“I’m expanding to girders next week.
Then brackets.” She paused, the creation pad’s runes flickering under her sleeve as she brushed against it.
“Assuming you’re available for—”
“Whenever.” Soren stood, his stool scraping against the floor.
The workshop’s overhead lights caught the faint sheen of sweat on Momo’s temple—lipid conversion’s toll.
“Just don’t ask before nine.”
She smiled, a brief upward tilt of her mouth that vanished as quickly as the seventh beam’s thermal signature.
“I’ll send a schedule.”
Soren gathered nothing because he’d brought nothing—just his Quirk and the scar on his thumb, both already accounted for.
He paused at the door, one hand on the frame.
The workshop’s iron hummed at the edge of his senses: the rack’s hollow tubes, the caliper’s stainless jaws, the seventh beam’s perfect lattice still warm from creation.
He left with a standing invitation to come back whenever she needed a reading.
Of Iron and Magnolia is the first story available, and I’ll add more as I write them.