The Covenant Files — Complete Series

The Covenant Files — Complete Series

A defrocked exorcist, a city of angels and demons, and a murder case that becomes the negotiation for humanity's survival. A 5-book urban fantasy series by Lincoln Cole — coming soon to Amazon and Kindle Unlimited.
📚 Coming soon. The Covenant Files releases on Amazon in Kindle and Kindle Unlimited. Want to know the day Book One goes live? Join the newsletter and I'll tell you.

The Covenant Files

Urban Fantasy / Noir Theological Thriller — 5 Books

A defrocked exorcist discovers his murder victims are angel-human hybrids — and the Church has been exterminating them for centuries. When cosmic factions converge, he becomes the only man all sides trust to mediate, because he has nothing left to lose and no loyalty to sell.

The thing is, I didn't set out to write a series about institutional corruption, cosmic bureaucracy, and a man who keeps getting stuck between impossible choices. I set out to write about a priest who gets fired and still can't stop doing the job.

Marcus Kane started in my head as a very specific kind of person: someone whose faith survived getting shattered, but changed shape completely in the process. He's not a true believer anymore. He's not a cynical atheist either. He's something messier — a man who knows too much to pretend, and too little to walk away.

I set him in Chicago because Chicago has that quality. It's a city with layers. The history is right under the surface, some of it beautiful, some of it genuinely ugly. Drop a supernatural underworld in there — angel-human hybrids being quietly hunted, a demon who does contract law from the 75th floor, Death running a jazz bar on the South Side — and the city doesn't crack. It absorbs it. That felt right.

What started as a noir murder mystery (a killer collecting Nephilim souls to build a legal case before Heaven) became something much bigger. By the time I'd written all five books, Marcus had convened the first-ever Assembly of cosmic factions in a condemned church basement, negotiated humanity's survival in the Apocalypse, and discovered that standing in the middle of every conflict — being the Bridge — costs more than any side ever tells you upfront.

These books are dense with theology, philosophy, and Chicago geography. They're also, I think, genuinely fun to read.

Dark atmospheric Chicago street at night — The Covenant Files by Lincoln Cole

The Books

Book 1: Sins of the Father

Sins of the Father cover

Marcus Kane was the Vatican's best investigator until he asked questions they didn't want answered. Now defrocked and working supernatural cases from a condemned South Side church, he keeps his head down and his bourbon close.

When ritual murder victims appear with Enochian script spelling INNOCENT carved into their chests, Marcus joins Detective Sarah Chen in a chase that runs from Chicago's supernatural underworld straight to the Vatican's darkest secrets. The killer is collecting Nephilim souls — angel-human hybrids the Church has been quietly exterminating for decades — building what he believes is a legal case before Heaven for their salvation. He needs thirty-seven. He has thirty-six. Number thirty-seven is Lily Kane. Marcus's niece.


Book 2: Blood of Angels

Blood of Angels cover

Nephilim blood, processed right, creates Divinity: a drug that grants temporary angelic powers and burns out human souls. Marcus traces the supply chain from Chicago's supernatural underground to his own half-brother — a megachurch pastor who plans to forcibly evolve ten thousand followers into a new species at Sunday service.

With Heaven threatening genocide and the survival math looking catastrophic, Marcus must stop a mass convergence that could tear reality open. Or accept that being the Bridge sometimes means burning.


Book 3: The Judas Gospel

The Judas Gospel cover

Judas didn't betray Christ for silver. He did it because he was told to. Now the lost gospel has surfaced in Chicago, and its revelations threaten to unmake every religious institution on Earth.

When Vatican assassins, Hell operatives, and federal agents all converge on the same document, Marcus must protect the woman who found it, the truth it contains, and his own increasingly complicated relationship with a faith that keeps refusing to leave him alone.


Book 4: The End Testament

The End Testament cover

When Lily's daughter Hope arrives simultaneously across 412 timelines as a structural anchor for reality itself, Marcus convenes the first Assembly of cosmic factions: Heaven's Metatron, Hell's Brimstone, Cardinal Rossetti, Detective Chen, and Death himself. But Hope's birth awakens something older than all of them — the Pre-Categorical Void, the primordial non-existence that predates creation, demanding institutional recognition as a valid third option.

Marcus drafts a twelve-page governance framework. The Void accepts unconditionally. Things escalate from there.


Book 5: The Final Covenant

The Final Covenant cover

The end of the world isn't coming. It's being negotiated.

Marcus Kane has spent four books averting apocalypses. Now he's invited to the table where humanity's fate is actually decided — and discovers that his greatest failure was orchestrated specifically to make him the only person all sides will trust with the result. Angels, demons, and ancient powers have made their moves. The Covenant remains: humanity's last chance, or its final betrayal.

✏️ One thing I've learned writing this series: Marcus Kane refuses to be simple. Every time I thought I had him figured out, he'd make a choice that surprised me. That's how you know a character is working.

Meet the Characters

Marcus KaneProtagonist

Excommunicated exorcist who sees through the Veil — the barrier between the mundane and supernatural worlds. Operates out of a condemned church basement on Chicago's South Side. He has nothing left to lose and no loyalty to sell, which makes him uniquely suited to stand between Heaven, Hell, and everything in between. The trick is that standing in the middle means getting hit from both sides.


Detective Sarah ChenSupporting

18th District detective who handles the supernatural cases Chicago PD won't put in the official reports. Marcus's primary law enforcement contact and, over five books, one of the people he trusts most. She has her own reasons for staying involved. They're good reasons.


Lily KaneSupporting

Marcus's teenage niece. Emerging psychometric abilities. Extremely high survival probability calculations. The next generation of Kane psychics, and the person Marcus will burn everything down to protect — which is exactly why she keeps ending up in the middle of things.


Father Gabriel TorrettiAntagonist

Vatican operative with complex connections to Marcus's past and the supernatural hierarchy. His relationship with Marcus is one of the series' more complicated dynamics — not a simple villain, not an ally, something more interesting than either.


BrimstoneSupporting

Powerful demon. Operates from the 75th floor. Known for making deals rather than causing destruction, which makes him oddly reliable. In Chicago's supernatural underworld, reliable is worth more than loyal.


AzraelSupporting

The Angel of Death. Goes by Ray when interacting with mortals. Runs a jazz bar on the South Side. Exactly as unsettling as you'd expect, and occasionally useful.

What This Series Is Really About

Faith is the spine of this series — not faith as a comfortable thing, but faith as a practice that survives contact with reality. Marcus's belief didn't die when the Church fired him. It transformed into something harder to name and harder to walk away from.

The cost of standing in the middle runs through every book. Every faction wants Marcus to choose a side. He keeps refusing. This is portrayed as both his greatest strength and the thing that slowly grinds him down. Redemption through service — doing the work even when nobody's watching, even when the institution that trained you has turned its back. Found family, built from the odd collection of people Chicago's supernatural underworld throws together. Institutional corruption, the specific kind that comes from organizations that started with genuine purpose and calcified over centuries into something that protects itself first.

Fans of Jim Butcher's Dresden Files will find familiar Chicago streets here — but The Covenant Files goes darker on the institutional theology, and Marcus Kane is a very different kind of man than Harry Dresden.


The Covenant Files is part of Lincoln Cole's connected fiction universe — a shelf of series that share characters and lore.

Lincoln Cole also builds voice games for Amazon Alexa — explore the Alexa games.

The Covenant Files is coming soon to Amazon in Kindle and Kindle Unlimited.

Don't want to miss it? Join the newsletter and I'll send one email the day Book One goes live. While you wait, the rest of my connected universe is on Amazon right now — start with the reading order guide.

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