The wagons did not return with the column.

  Eiden noticed before midday.

  They had arrived at dusk the previous night—canvas sealed, rope doubled, guards posted with the same quiet posture used for munitions. By dawn, they were gone.

  The tracks veered east again.

  Not toward the supply road.

  Not toward the rear command tents.

  East.

  Into territory already secured and declared stable.

  He adjusted the strap of his shield. The leather had stiffened with dried sweat and dust. It bit deeper into his shoulder than it had yesterday.

  He kept formation.

  No one commented.

  Someone coughed.

  The silence stayed anyway.

  The skirmish that day lasted longer.

  Five exchanges instead of three.

  The demon line pressed once with coordinated weight, testing depth and spacing, then withdrew in disciplined intervals.

  No pursuit was ordered.

  No one requested it.

  Eiden held the position.

  He did not step forward when the front rank shifted to compensate for a shallow dip in the ground.

  A blade passed within inches of his shoulder.

  Close enough to feel displaced air.

  Not close enough to touch skin.

  He did not exhale until disengagement.

  His lungs burned slightly when the breath finally left him. He hadn’t realized he’d held it that long.

  Behind him, a soldier muttered, “Closer than it looked.”

  “Not close enough,” Eiden replied.

  Dry.

  Flat.

  The line reset.

  Three men were marked that evening.

  Different units.

  Different cuts.

  The mage moved with the same efficiency, rod dipping into dark ink before each mark. The symbol was drawn in one motion—clean, economical, impossible to mistake for anything else.

  One of the marked soldiers laughed when it was done.

  “Just a scratch,” he said.

  He flexed his wrist once.

  “Had worse shaving.”

  No one responded.

  They had heard that before.

  Rynn glanced once at the man, then back at the fire.

  “He’ll stop joking by midnight.”

  The firewood popped softly, sending sparks sideways into the dirt.

  Eiden did not answer.

  For a moment he waited for something like sympathy to appear.

  It didn’t.

  He was watching the mage’s hand.

  There was no hesitation in the line.

  The rod never trembled.

  The tremor came earlier that night.

  The laughing soldier dropped mid-sentence.

  His fingers clawed at the ground as the shaking overtook him. It traveled from wrist to elbow, then upward in visible waves beneath the skin.

  Four men restrained him immediately.

  One forced cloth between his teeth before his jaw could snap shut on itself.

  The mage knelt again.

  Eyes checked.

  Pulse measured.

  The shaking intensified.

  His heel struck the dirt repeatedly as the muscles locked.

  For a moment, Eiden expected the word.

  “Viable.”

  It did not come.

  The mage stood.

  He did not raise his voice.

  He nodded once to the guard.

  The blade entered cleanly beneath the rib.

  Quick.

  Precise.

  The tremor stopped immediately.

  No convulsion.

  No scream.

  The body was carried to the burn pit before midnight.

  The smoke reached the camp a few minutes later.

  Grease and wet wood.

  The second marked man was taken to the wagon.

  “Viable.”

  Quieter this time.

  Measured.

  The difference was speed.

  Eiden counted.

  Escalation interval.

  Intensity curve.

  Response threshold.

  Below a certain progression rate: transport.

  Above it: termination.

  The army did not hesitate.

  Containment first.

  On the third day, the metallic scent in the air thickened.

  Not blood. Not iron.

  Something processed.

  The tale has been taken without authorization; if you see it on Amazon, report the incident.

  It was not coming from the field.

  It was coming from camp.

  More marked soldiers.

  Five this time.

  One from the rear supply unit.

  The infection was not limited to front-line contact.

  That changed the equation.

  Eiden approached the water line deliberately when no officers were present.

  Two men ahead of him spoke in low voices.

  A third soldier nearby pretended not to listen.

  He stopped drinking from his cup anyway.

  “Forty-eight hours,” one said.

  “Less if it’s deep.”

  “Depends how deep the blade went.”

  They spoke as if discussing the weather.

  Not fate.

  The knowledge was already distributed among the ranks.

  The infection was not a rumor.

  It was an accepted risk.

  Managed probability.

  That evening, a man in heavy infantry armor was marked.

  Aura user.

  Experienced.

  He did not relocate when told.

  “I’ll hold,” he said. “It won’t take.”

  The mage studied him longer than the others.

  The mark was drawn anyway.

  The man remained near the fire.

  Midnight came.

  The tremor did not.

  He stood.

  He walked.

  He spoke normally.

  The men near him watched without comment.

  Rynn muttered, “Maybe he’s right.”

  “Maybe,” Eiden said.

  Dawn approached.

  The tremor hit all at once.

  Violent.

  Stronger than the others.

  The aura user threw two men off him before they could restrain him.

  His veins darkened beneath the skin. The shaking intensified into something else—muscle distortion, posture warping as if alignment were being rewritten.

  The mage did not kneel.

  “Terminate.”

  Three blades entered simultaneously.

  The body burned before sunrise.

  Eiden memorized the sequence.

  Aura delayed progression.

  It did not prevent collapse.

  Delay created false confidence.

  Confidence created escalation.

  The wagons arrived again at dusk.

  Two this time.

  Eiden moved closer to the perimeter under the pretense of checking his buckles.

  The canvas shifted once as something inside struck the side.

  Not violently.

  Rhythmic.

  Then still.

  A guard tightened the rope without looking at him.

  “Step back,” the guard said.

  Eiden stepped back.

  No tension.

  Just a procedure.

  He traced the pattern across three days.

  Contact.

  Heat by evening.

  The tremor usually came before dawn.

  Outcome determined by intensity and timing.

  Transport or execution.

  No cure attempted.

  No ritual invoked.

  No priest summoned.

  This was not a war against corruption.

  It was data collection under military discipline.

  And the wagons did not return.

  That mattered.

  The next skirmish came in narrow terrain—a broken stone corridor between collapsed structures.

  The demons held elevation and did not descend. Their boots stayed planted on the broken stone ridge above the corridor.

  They forced the humans into constrained spacing, testing reaction speed and shoulder clearance.

  Eiden adjusted backward by instinct.

  A blade struck the man beside him instead.

  The cut was shallow.

  The man cursed.

  The line was re-stabilized.

  Disengagement followed.

  Eiden did not look at the wound.

  He did not need to.

  The mark would confirm it by evening.

  Seven were marked that night.

  Two from the same corridor unit.

  One from supply.

  One from engineering.

  The spread was widening.

  The mage’s rod did not hesitate.

  The ink did not run out.

  The procedure did not change.

  Rynn watched the seventh mark drawn.

  “How many before they rethink this process?”

  Rynn nudged a stone into the fire with her boot.

  “They won’t rethink it,” Eiden said.

  “They’ll refine it.”

  She studied him a moment longer than usual.

  “You’re counting.”

  “Yes.”

  “Are you planning to tell anyone?”

  “No.”

  She nodded once.

  Practical.

  He slept only after the tremors began.

  The sound of restrained bodies hitting dirt had become predictable.

  The word “viable” repeated twice.

  Three executions.

  Two transports.

  He closed his eyes only after the wagons rolled east again.

  Sleep was shallow.

  Calculated.

  At dawn, he woke before the horn.

  His head felt heavy.

  Not from injury.

  From retention.

  He was tracking too much at once.

  Numbers layered over faces.

  Progression speed.

  Unit distribution.

  Wagon frequency.

  Aura resistance.

  He pressed two fingers against his temple.

  The skin felt hot.

  The pressure lingered longer than it should have.

  Sleep preserved the anchor.

  It did not restore clarity.

  There was a cost to remembering every branch.

  He was beginning to feel it.

  The march resumed.

  The demon resistance did not grow louder.

  It grew narrower.

  Spacing adjusted.

  Angles tightened.

  They were not exploiting infection.

  They were continuing structure.

  Which meant the infection was not a battlefield tactic alone.

  It was integrated.

  Designed.

  Blade placement was precise.

  Cuts were shallow but deliberate.

  Enough to seed.

  Rarely enough to kill immediately.

  Eiden’s stomach tightened—not in fear, but recognition.

  The demons were not trying to wipe out units.

  They were planting something.

  They were supplying something that did not fight back.

  He stepped into formation again, two ranks behind the forward spears.

  He no longer watched only the demons.

  He watched his own line.

  Who flinched too late.

  Who stepped too far.

  Who bled.

  A spearman shifted clumsily and took a glancing slice to the thigh.

  Eiden adjusted the shield wall without breaking rhythm.

  He did not look at the blood.

  He noted the depth.

  Not arterial.

  Likely mark.

  Another clock started.

  The war was no longer confined to the exchange of steel.

  Someone behind him muttered that the demons were running out of strength.

  No one corrected him.

  It extended into the night.

  Into sealed wagons.

  Into whispered thresholds.

  And somewhere beyond the eastern route the wagons took, something was deciding which men were worth keeping alive.

  Resource.

  Viable.

  Containment was not protection.

  It was sorting.

  The horns sounded.

  The column advanced.

  Behind him, a blade struck and withdrew.

  Ahead of him, a demon commander signaled a measured retreat.

  Eiden kept his distance.

  Not cowardice.

  Calibration.

  The count continued.

  And this time, he understood that survival did not depend only on avoiding a fatal strike.

  It depended on avoiding selection.