The Cydonian Oaths

The Chronicle Unfolds

He has hunted monsters for 2,600 years. He thought he knew what was coming.

He was wrong.

In 586 BCE, Celtic warrior Cian mac Morna received a sword, a commission, and a secret that would only be revealed when the world was ready for it. Twenty-six centuries later — having survived the Fall of Jerusalem, the Black Plague, and every war in between — the sword finally speaks.

The Two Witnesses of Revelation are returning. Cian is their Guardian. And the ancient enemy has spent five thousand years preparing for exactly this moment.

Deep in the Cydonian plains of Mars, orbital imagery has revealed something that should not exist: a sigil carved before the Flood. The mark of an oath sworn by two hundred fallen angels before they destroyed the ancient world and were imprisoned in chains of darkness. An oath that was never meant to be found.

But Naamah found it first.

She has many names across many centuries. The Watchers called her their queen. Scripture calls her the Whore of Babylon. And she has spent five millennia building the infrastructure for their release — corrupting bloodlines, cultivating power, and waiting with inhuman patience for the one thing she still needs: the key to the Abyss.

Now a private Mars mission is racing toward Cydonia. The sword Cian carries is made from the same ancient ore as the chamber on that red plain. And somewhere in Eden, the prophet Elijah has been waiting — sustained by the Tree of Life — for the hour of his return.

The chains are weakening. The oaths are stirring. And Cian mac Morna — 2,631 years old, deeply scarred, and constitutionally incapable of following orders he disagrees with — must prepare for a war that scripture promised was coming but no one believed would arrive in their lifetime.

It has arrived.

THE CYDONIAN OATHS is the first volume in The Nephilim Chronicles — a five-book biblical apocalyptic thriller drawing on 1 Enoch, the Book of Jubilees, and the prophecies of Revelation. For readers of Frank Peretti, Joel C. Rosenberg, and anyone who ever wondered what really happened before the Flood.

Characters of Destiny

Cian mac Morna

The Guardian

Celtic warrior of the Fianna, born 586 BCE. Sustained for 2,631 years by Methuselah's Sword — Mo Chrá — whose teal-gold luminescence marks him as set apart. Hunter of abominations, deeply scarred but unshakably faithful. He is constitutionally incapable of following orders he disagrees with — a limitation that has caused Liaigh twenty-six centuries of professional anguish.

Liaigh

The Archangel

Cian's guardian since before the Fall of Jerusalem — an angelic presence whose true name he has never revealed, for to reveal it ends direct communication forever. Cian calls him "Liaigh" — Irish for healer. Speaks in empyreal register: thee, thou, elevated vocabulary, cosmic gravitas. Subject to The Ban: cannot intervene against mortal humans, only supernatural threats. Has been arguing with Cian for twenty-six centuries. Both find it strangely comforting.

Miriam Ashford

The Survivor

British-Israeli financial analyst whose mother, Victoria, was murdered when Miriam was a child — a contract killing executed on behalf of a shadow network that had marked Miriam herself as a target. Twenty years of running have produced a woman fluent in Krav Maga, tradecraft, and reading money trails like maps. She carries her mother's files — evidence capable of destroying an empire — and a darker inheritance she cannot see: an ancient demonic claim that follows her, ensuring every person who tries to protect her pays a price she never asked them to pay.

Brennan mac Niamh

The Descendant

Founder and CEO of McNeeve Space Systems, the private aerospace startup that put five rovers on the Cydonian plains of Mars. Brennan always thought his "Uncle Sean" was just a family eccentric with unusual hobbies and an inexplicable weapons collection. He was spectacularly wrong. A direct descendant of Niamh — Cian's sister — Brennan carries a bloodline that has been hunted for 2,500 years and a gift for engineering that built the machine that photographed the sigil that was never meant to be found.

Marcus Reeves

The Acoustic Specialist

Navy veteran and McNeeve's acoustic engineering lead. Best friend. The man Brennan drove to at midnight when Marcus's marriage collapsed, arriving with a bottle of Jameson and staying until Marcus stopped shaking. It was Marcus who designed the rover array that captured the impossible acoustic data from the Cydonian stele — and Marcus who was the first to say, when asked if he was in: "Already am. For the record."

James Madigan

The Protector

SAS veteran. "Uncle James" — the man who appeared at Miriam Ashford's window the night her mother died and never fully left. He raised her without making a fuss about it, loving her with the quiet, non-performative dedication of a man who understands that showing up is the whole job. Now he is responsible for turning a team of brilliant aerospace engineers into people who can survive contested environments. He views this as a solvable problem. He is slightly wrong about that, and he knows it.

Sarah McNeeve

The Strategist

Corporate lawyer. Brennan's wife. Mother of two. When demons attacked her family she said "kids, get your shoes" and began reorganising her entire understanding of reality as a tactical problem. The cover story she constructs to dissolve McNeeve Space Systems — forensically airtight, devastatingly boring — will take forty exhausting hours and protect every civilian who might otherwise start asking questions that lead to doors they cannot survive opening. She is the most dangerous person in the room, and she bills by the hour.

McNeeve Space Systems

The Eleven

Eleven aerospace engineers — flight dynamics, software architecture, materials science, communications, robotics, cybersecurity, acoustic engineering — who built the most improbable Mars mission in history from a converted warehouse in Austin, Texas. They were not recruited to fight a war. They were recruited to build things that work in impossible conditions. It turns out the distinction matters less than anyone hoped.

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Methuselah's Sword (Mo Chrá)

The Living Weapon

"My Heart" in ancient tongue. The sword that sustains Cian's life and ages him at a rate of one year per millennium. Its teal-gold luminescence marks it as operating on the Acoustic Paradigm — the technology of sound that mirrors how God spoke creation into existence. When drawn, it resonates at a frequency that Nephilim cannot endure. It considers Cian the finest monster-slayer since Methuselah, and will never tell him so.

Shemyaza

The Fallen Commander

Captain and supreme commander of the two hundred Watchers who abandoned their celestial post on the Cydonian plains of Mars and descended to Mount Hermon. His obsession with a Cainite woman named Naamah is what triggered the entire catastrophe. Imprisoned in the Abyss since the Flood judgment, bound by chains of darkness until the Day of Judgment — but the oaths his council swore were never annulled. And oaths have a way of announcing themselves.

Armaros

The Devoted One

Shemyaza's second-in-command. Master of oaths, bindings, and the resolving of enchantments. It was Armaros who stepped forward on the Cydonian plain and declared: "Let us all swear an oath together and bind ourselves by mutual imprecations upon it." When Armaros constructed a vow, it was legally perfect. Eternally binding. Without escape clause or provision for repentance. His sigil — carved before the Flood — is what Brennan's rovers photographed on the Martian plain.

Gadreel

The Weapons Master

One of Shemyaza's twenty chiefs of tens. He taught humanity the first weapons of death — not out of malice, but out of a cold certainty that violence is the truest expression of power. He deceived Eve into sanctioning weapons for her own children's protection. The cascade of that teaching — armouries, armies, the industrialisation of violence — runs unbroken from antiquity to the present day. He is imprisoned. The institutions he built are not.

Naamah

The Ancient Adversary

Daughter of Lamech. Sister of Tubal-Cain. She was offered to the Watchers as a pawn by her father — and reversed her situation into genuine power before the first night was over. She has survived the Flood, the collapse of every empire she ever built, and five thousand years of hunter networks trying to find her. She has many names across many centuries, and many faces across many cultures. What she has never had is a reason to hurry. She is patient in a way that makes geological time look impulsive.

Lord Vârcolac

The Debt Collector

Turned in ancient Sumer. Approximately five thousand years old. In 586 BCE he was contracted to imprison Mo Chrá and was promised a virgin sacrifice to power the wards. Cian recovered the sword and took his sister home, and the debt was never paid. Vârcolac is not motivated by hatred — he is motivated by accounting. The interest on 2,500 years of unpaid debt has compounded to a figure he calculates can only be settled by eliminating the entire bloodline. He has murdered 247 confirmed members of Niamh's family. He also killed Miriam Ashford's mother. It wasn't personal. Just business.

The Chronicle's Structure

Prologue: The Descent

Mount Hermon. The night two hundred Watchers swore the oath that changed the world. The founding moment of 2,631 years of consequence.

The Awakening

Cian mac Morna in the modern world. The hunter and his quarry. The sword that should not still be glowing.

The Hunter

The mechanics of 2,600 years of Nephilim hunting. The networks. The shadows. The cost of endurance.

The Coordinates

Something is shifting in the pattern. Coordinates that should not exist point toward a convergence Cian has never seen before.

The Data Trail

Ancient evil leaves modern traces. Following the thread through layers of shadow into the infrastructure of the Harlot Network.

The Celestial Biology Lesson

Liaigh reveals what Cian has never fully understood about the taxonomy of the supernatural — Watchers, Nephilim, territorial spirits, and their respective judgements.

Guns. Lots of Guns.

Cian's arsenal and methodology. How a Celtic warrior of 586 BCE adapted across 2,631 years of weaponry evolution while remaining fundamentally himself.

The Other Hunter

He is not alone. There is another who hunts — older, stranger, and operating by different protocols. The first hint that the game is larger than Cian knew.

The Collision

Two hunters, one target, and a confrontation that changes everything Cian thought he understood about his place in the war.

The Arsenal

Preparations for what is coming. The weapons, the allies, and the ancient protocols that must be followed before the next threshold is crossed.

The Reckoning

The convergence begins. What has been building across millennia arrives at the moment that was always coming.

The Debt Repaid

2,631 years of faithfulness meets its first visible return. Ancient debts — spiritual, covenantal, personal — begin their settlement.

The Question

The question Cian has never dared ask. The answer Liaigh has been waiting 2,600 years to give. The revelation that reframes everything.

The Frequency

The Acoustic Paradigm revealed. The technology of sound. The reason Mo Chrá resonates. The reason the Watchers chose what they chose.

The Silence

After revelation comes the silence before the storm. What is known cannot be unknown. What is coming cannot be stopped. Only navigated.

The Dissolution

Ancient structures begin to dissolve as the prophetic timeline accelerates. The world shifts in ways only Cian is old enough to recognise.

The Queen Moves

Naamah reveals her hand. The Harlot Network makes its first open move. The shadow war enters a new phase.

The Testimony of the Archangel

What Liaigh knows. What he has always known. The testimony that completes the record and sets the stage for the ministry of the Two Witnesses.

Epilogue: The Digging Begins

The ground is broken on what was buried. The Cydonian Oaths are not the end of the story. They are the prologue to the final 1,260 days.

The Nephilim Chronicles

The Nephilim Chronicles — Book One