The Last Breath

Rome. Anno Domini 2262.

Cardinal Aurelio Morandi, Prefect of the Dicastery for the Causes of Saints, stared at the packet resting on the solid walnut desk. In an era of quantum transmissions and instantaneous holographic streams, that object was an absolute anachronism: real, thick paper, sealed with a heavy stamp of red sealing wax bearing the crest of the Bishopric of Mars.

He broke the seal with a silver letter opener. Inside, he found a dossier and a handwritten letter from the Bishop of the Colonies.

"Most Reverend Eminence," read the opening, "I transmit to you the records regarding the incident at Jezero Outpost. What you will read is a document that begins in a cold, scientific manner, as is fitting for mission logs and the harsh hostility of our planet. But I beg you to read to the very end: mere telemetric data is not enough to contain what took place. Here are the facts."

The Cardinal adjusted his glasses, turned the page, and began to read.

The alarm did not sound until 14:22 local time, but the failure had been brewing for six hours, invisible, within the fine red dust that had settled on the outer housing of Oxygen Valve Cluster Number Seven.

No one at Jezero Outpost could have known yet. At 14:22, the only certainty inside the base was that Father David Reyes had lost at poker once again.

"Four in a row," said Dr. Priya Nakamura, gathering the cards with the satisfaction of someone who had waited three years to beat a priest at cards, only to discover that the secret was simply facing him at the end of his watch shift. "I'm starting to think God doesn't want to see you win, Father."

"God," Reyes replied, "is entirely indifferent to poker. You, on the other hand, counted my hand before I even finished laying it down."

"I counted fast. It's called being good at math."

"It's called being a physicist with nothing better to do than humiliate the clergy."

Priya smiled and began shuffling the deck again. Around them, the common room of Jezero Outpost thrummed with its usual quiet chorus: the air recyclers exhaling behind the bulkheads, the dull mechanical hum of the centrifuge down the corridor, and the music filtering faintly from the hydroponics bay, where Elias Okafor loved to tend his tomatoes to a rhythm, swearing it made them sweeter.

The room smelled of recycled coffee and that mineral tang that never truly left the Martian atmospheric filters, no matter how many purification cycles they underwent. Three hundred people lived there, at least fifty million kilometers from anyone who could reach them in under nine months. If trouble arose, the other Martian colonies would not intervene: it was a grim rule, but experience had taught that aiding a colony in peril meant destroying both.

It had been Father David Reyes's home for two years, four months, and—he made the calculation automatically, as always—eleven days.

He was fifty-two years old and built like a man who had spent a decade doing hard physical labor at a mission in Guatemala before the seminary sent him back to study. His face was permanently weathered by the sun, even if Mars, at that distance from the star, offered nothing to burn a man. He wore the same navy-blue operational jumpsuit as the others, collar open, no clerical markings save for a small pewter cross pinned where military insignia would usually rest, and a rosary wrapped twice around his left wrist like a bracelet, its wooden beads smooth and darkened by skin oils.

Priya caught him looking at the rosary as she dealt the cards. "Do you miss the company?" she asked. Not out of malice; she often asked such questions when the shift was quiet—pure scientific curiosity disguised as casual chatter. "I mean... being the only one. No congregation. No bishop for millions of kilometers."

"I have a congregation of three hundred souls and an argumentative quasi-Jesuit physicist," he replied, gathering his cards. "I don't lack company. It's Tuesday."

"That's not what I meant."

He considered the question seriously, as he did with almost everything she asked him. In his first six months on Mars, he had learned that Priya Nakamura's seemingly casual questions were never truly casual.

"Being close to God has never required a crowd," he said. "If anything, the vastness helps. Have you ever watched the sky at dusk here? That purplish band just above the horizon, a moment before the stars appear? In all my life, I've never felt so small, nor so accompanied."

"Either that's beautiful, or it's a symptom of hypoxia."

"With you in the room, it could be both."

She laughed—a clear, sudden laugh, the kind the base heard all too rarely—and it was right in the middle of that laugh, with cards still fanned out in her hands, that the alarm went off.

It wasn't the drill siren. Everyone at Jezero Outpost knew that sound in their bones—three short, repeated pulses—familiar enough to evoke almost no fear anymore. This was different: a single, prolonged, sharp, and unnatural tone. The kind of alarm built into the facility's architecture for a single, dire purpose, never activated in the colony's eleven-year history except during factory acceptance tests.

Atmospheric composition anomaly.

The lights in the common room shifted from cold white to emergency amber. A synthesized voice, modulated with that specific, studied calm engineers design to prevent panic, spoke simultaneously from every loudspeaker in the module:

"Attention. CO₂ concentration in the Habitation Ring exceeds safety thresholds. Primary scrubber output at eleven percent nominal. Secondary scrubber offline. All personnel proceed to designated oxygen stations. This is not a drill."

Reyes was already on his feet before the broadcast ended. Priya moved at the exact same instant, cards forgotten on the bench, sliding down the corridor toward the oxygen stations. Her physicist's mind was running three steps ahead, calculating equations that reflected behind her eyes.

"Eleven percent," she muttered, more to herself than to him. "An ECLSS system doesn't fail like that. Not without an external mechanical cause."

They met Base Commander Heather Whitfield at the module junction. She held her headset pressed against her ear, listening to a secure channel, her face carved with the expression of someone conducting real-time triage.

"Talk to me," Priya said.

"The primary scrubber locked up an hour ago," Whitfield explained. "No one noticed because the redundant circuit compensated immediately, but the lock failure alarm never triggered. Now the secondary system has just gone offline. Both inlet valves on Cluster Seven indicate a physical obstruction. External."

She looked up, and for a fraction of a second, the officer's firmness gave way to pure, human fear. "Dust. The storm from two nights ago. It's electrostatically charged—it doesn't slide off; it crusts. It has packed into the housings like concrete. The first alarm failed, and we didn't know!"

"Remote manual override?" Reyes asked.

"Useless if the intake is mechanically jammed. Someone has to go outside and clear it by hand." Whitfield's jaw set tight. "CO₂ in Ring Two is rising fast. We have maybe ninety minutes before the damage becomes irreversible. After that, we become the third Martian colony to earn the title 'Pioneer Martyrs.'"

Ninety minutes. Reyes knew the crew and the environment well enough to know what ninety minutes meant in the cautious language of engineers: it was an optimistic estimate. It assumed no further complications arose. And on Mars, something always went wrong.

"To the airlock," Whitfield said, veering toward the suit bay. The three moved in unison at a rapid pace, adapting their stride to the planet's reduced gravity—a long, slightly floating gait typical of Martian emergency maneuvers.

The airlock bay was controlled chaos. A technician was on his knees before the EVA module lockers, cursing softly in three languages as he wrestled with a jammed latch. Two other colonists were unmounting backup oxygen tanks.

On the diagnostic display of the primary EVA suit—the only one currently certified for complex extravehicular activity, as the other two were stripped down for gasket maintenance scheduled for the following week—a red indicator flashed with a stubborn rhythm.

Whitfield stared at it, her face taking on the same amber hue as the emergency lights. "Sixteen percent," she said. "The suit's tank is at sixteen percent charge."

"That's not enough for a round trip to Cluster Seven," Elias said without looking up, his voice flattened by mathematical horror. "It's not even enough to cover the distance and get back into the airlock if the repair takes more than..."

"How far is the walk?" Reyes interrupted.

Everyone in the bay turned toward him.

"Four hundred meters," Whitfield answered slowly. "Cluster Seven is on the north ridge, past the solar arrays."

"And the repair itself?"

"Fifteen, twenty minutes, assuming the housing hasn't fused. Longer if it's jammed."

They looked at Father Reyes with expressions suspended between hope and dread. He had run the numbers himself, and numbers on Mars showed no mercy. "Father... sixteen percent won't guarantee you can get there, work, and return. It gives you time to arrive and, perhaps, finish the job. That's all. The equation stops there."

A dense silence fell over the bay, the heavy weight of ten people arriving at the same unbearable conclusion in the span of three seconds.

"Who else is qualified for external EVA on this shift?" Father Reyes asked.

"Antwerp is on the south sector servicing the dishes; it'll take him forty minutes to trek back," Whitfield said. "Petrov is the only other certified tech, and he's stuck in the infirmary with a broken wrist since Thursday. I signed the report myself..."

Father Reyes reached out toward the suit casing. "I ran emergency evacuation drills long before I entered the seminary, Commander. I can move fast, and I can stay focused when telemetry gets critical. Time is the one non-negotiable resource, and we are burning it."

Whitfield stared at him for an infinite second—an entire ethical debate compressed into a single exchange of glances: I could order someone else; there is no one else. I could wait for Antwerp; we don't have forty minutes. I could forbid him; I have no right.

Finally, she nodded once and unlatched the suit from the rack.

Priya grabbed his arm as the others secured the ankle seals. Her hand was trembling imperceptibly —the clearest sign of fear he had ever seen from her, far worse than the alarm itself.

"You know what that sixteen percent means," she said softly.

"I know what it means."

"David." She used his given name, an absolute rarity. "The valve. Fix the valve. But don't take risks on the way back. If the indicator drops below three percent, you turn around and come back. Do you understand me? You come back."

"I'll turn back," he said. And he added nothing more, because both of them knew there was no phrasing in which that promise could turn out true.

Donning the suit took four minutes that felt like forty. The EVA suit was an older model, heavy and lacking fluid servomechanisms. The gloves were thick, turning every precision task into an exercise in brute force; the joints offered the rigid resistance typical of a shell designed to protect a fragile human organism from an atmosphere that would boil bodily fluids in less than thirty seconds.

Priya checked the seal integrity with stiff fingers. "Audio channels are open. I'll be monitoring your vital signs and O₂ levels the whole way. Report any anomaly, no matter how small. A spike, a drop in pressure..."

"Priya."

"Yes?"

"Thank you. Say a prayer, if you remember one. If not, follow the numbers."

"I'll follow the numbers," Priya said, her voice cracking on the final syllable.

Father Reyes reached out with a bulky glove and squeezed her shoulder firmly. Then he turned to the hatch.

The rosary was secure around his left wrist beneath the thermal layer of the suit, its wooden beads cold against his skin. The outer airlock door completed its depressurization cycle with a hiss.

Mars opened up before him.

Nothing on Earth prepares a person to see that landscape without the filter of a pressurized window. It was not merely red: it was an expanse of rust, ochre, and deep purplish shades wherever shadows gathered downwind of every rock. Above it all hung a pale, faded peach-colored sky, thin and indifferent.

Father Reyes took his first step onto the regolith, feeling the familiar sensation of lightness. His boots kicked up small clouds of fine dust that fell back in slow, floating arcs, alien to any terrestrial physics.

14%, pulsed the telemetry hologram in the upper corner of his visor. The green numbers ticked down with relentless precision.

"You've cleared the perimeter," Priya's voice confirmed in his earpiece, tight with focused strain. "Four hundred meters to Cluster Seven, bearing three-one-zero. Wind is picking up on the ridge.

Visibility will drop soon."

"Copy," Reyes replied.

He picked up his pace. Every breath sounded deep and amplified inside his helmet, the sole sound in that mineral void—a metronome that brought back memories from decades prior, in another desert, in Guatemala, where he had also found himself walking toward danger because there was no one else to do it.

12%.

The wind struck him halfway up the incline toward the ridge: a wall of fine particles lashed his left side hard enough to make him stagger. Visibility collapsed. He leaned forward, cutting into the gale while dust hissed against the polycarbonate visor like radio static.

10%.

"David...Father, your heart rate is climbing," Priya chimed in. "It's a normal response, but I need you to regulate your breathing. Inhale for four seconds, hold for two..."

"I know the protocol, Priya." He said it with a calm, almost gentle tone. And he kept advancing.

The ridge was visible now: a dark basalt outcrop crowned by the blocky structure of Cluster Seven.

8%.

He reached the unit eleven minutes after the timer had restarted. He knelt at the base of the valve assembly. The intake housing was completely blocked, hardened by regolith bound by electrostatic charge. It looked like poured rust-colored wax.

6%.

"I'm at the cluster," he reported. "Intake entirely blocked. Beginning manual clearance."

He drew the steel punch. His clumsy gloved fingers struggled to get a grip against the hardened shell. The dust chipped off in small chunks, falling only to settle again. Accustomed to manual labor with improvised tools, Reyes fell back into an ancient rhythm: strike, scrape, breathe. Strike, scrape, breathe.

He forced himself not to look at the green counter in the corner of his helmet. The universe had narrowed down to the valve and his hands.

4%.

"David." Priya's voice had lost every shred of professional distance. "David, your oxygen reserve..."

"I see the housing seal," he interrupted, because it was true: the metallic finish was beginning to show beneath the final layer of dust. "I'm almost there, Priya."

His hands shook from exhaustion and the bitter cold seeping through the gloves. A slab of hardened regolith finally broke free with a sharp snap, sliding down the basalt. The manual override lever was exposed.

Reyes seized it with both hands and threw his full weight against it. The mechanism didn't budge.

3%.

"Turn back! Now!" Priya screamed over the comms. "David, you're at three percent! You promised!"

He didn't answer. He braced his boots against the support frame, locked his grip on the steel, and gave one last, desperate heave with everything he had left.

The lever snapped forward. A harsh metallic clatter resonated through the rigid structure of the suit before it could even travel through the thin air. The shutter mechanism slid into the open position with a heavy click.

And somewhere, buried beneath four hundred meters of rock and pressurized modules, a deep vibration woke to life: the mechanical breath of Jezero Outpost circulating once more.

2%.

For a moment, he remained lying on the regolith, face up, staring at the sky as it softened into a deep violet. In his chest, he felt a sensation that was neither simple relief nor triumph, but something very close to peace.

The radio crackled. Overlapping, confused voices burst through the internal speaker—exclamations, Whitfield confirming the drop in CO₂ and the restoration of air flow, Priya pleading for updates.

Father David Michael Reyes listened to the voices of his flock. He had been a good shepherd, he thought, helping them breathe again. Then, with a slow and deliberate movement, he brought his glove to the control module on his chest and switched off the transmitter.

He had no oxygen to spend on words. He understood this with the absolute clarity that comes when the outcome is settled and no further action remains. The telemetry display on his visor stopped showing numbers and began flashing red. His field of view started to narrow at the edges, like a camera aperture slowly closing down.

1%.

No panic set in. Only a profound cold, a visceral exhaustion, and just beneath it, a subtle warmth spreading from his chest: the brain's physiological response to oxygen deprivation.

He thought of Guatemala. Of his mother's hands. Of the deep blue sky over the city where he had been ordained a priest. He thought of Priya's laugh in the common room and hoped, with the fading vagueness of drifting thoughts, that she would choose to remember that moment.

His heavy right hand searched for his left wrist. He slid his stiff fingers along the fabric of the suit until they touched the beads of the rosary. He found the small pewter cross. Slowly, he raised his arm, holding it before his visor, framing the cross against the Martian horizon.

0%.

His vision constricted to a narrow circle enclosing the cross and, beyond it, the orange plain under the violet sky. He did not feel the vastness as loneliness, but as a presence.

His last breath, brief and light, fogged the polycarbonate from within—a thin film of condensation that lingered for a moment before dissolving away. Then, only the cross, the red dust, and the silence of the planet remained.

They found him forty minutes later, after the wind had died down.

Whitfield knelt beside him in the dust and gently closed her hand around Father Reyes's, remaining in silence until the recovery team arrived.

Three years later, the small chapel at Jezero Outpost was adorned with a single feature above the altar: a polymer photographic print, taken from Whitfield's helmet camera, depicting a spacesuit glove raising a cross against the Martian sky.

Beneath the image, a plaque bore an inscription written by Priya Nakamura:

“He gave his breath so that we might keep ours.”

From that day on, every colonist donning a suit for an extravehicular trip touched two fingers to that photograph before stepping through the airlock. It became a spontaneous ritual. No spoken words, just a breath held for a fleeting moment before sealing the helmet, carried out into the Martian silence by men and women learning to live beyond Earth.

Cardinal Morandi carefully folded the letter. The silence of his Vatican office suddenly felt vast, weighted with the same gravity of that distant sky.

He took the fountain pen from the silver inkwell and, with a steady hand, inscribed the prescribed formula from the ancient apostolic letter Maiorem hac dilectionem: “Constat de heroica oblatione vitae usque ad mortem propter caritatem”—it is proven that there was an heroic offering of life unto death out of charity.

Less than an hour later, the signal bounced from Earth's orbital relay stations out to the outposts of the Asteroid Belt: the Holy See had officially promulgated the decree for the offering of life, enrolling Father David Michael Reyes among the Venerable, paving the way for his beatification as patron and protector of the distant skies.

Anno Domini 2462. Two hundred years later.

Beneath the grand silicate dome of the Cathedral of Our Lady of Jezero—the first sacred structure built on Martian soil—sixty thousand voices sang the Te Deum. Beyond the pressurized glass panes, the sky faded into the deep purple of twilight. The aroma of incense mingled with the mineral note of fifth-generation atmospheric systems. The Pope, who had traveled from Earth for the celebration, pronounced the solemn Latin formula, its echo reverberating across the entire colony.

David Michael Reyes was proclaimed a Saint.

Saint David of Jezero. Patron of breath and of atmospheric system technicians. Protector of those who live beyond the bounds of Earth.

On the high altar, there were no golden statues or silver reliquaries. There stood only a rugged block of dark basalt, quarried from the north ridge, housing a transparent reliquary. Inside rested an old polymer photograph: a rigid, outdated EVA suit glove, clenched around a rosary against the horizon of Mars.

And before passing through the cathedral doors to step out into the desert, every believer—scientist, miner, or engineer—paused for a moment before the glass. They touched two fingers to the pane. And for half a second, before sealing their helmets, they held their breath.