A 26-Book Theological Universe
The Genesis Series — Sonya Trilogy Live Now

Between Heavenand Hell

"Initium omnis peccati superbia."

Seven deadly sins. Eight European cities. A theologian-killer staging murders as academic lessons. An Interpol detective and an ex-priest journalist racing to stop him before the final lesson is taught.

Book 1: Pride — Rome Book 2: Greed — Venice Book 3: Envy — Florence Book 4: Lust — Paris (available wide on Apple, Kobo, B&N, Smashwords, and more) Book 5: Gluttony — Barcelona Book 6: Wrath — Seville Book 7: Sloth — Prague Book 8: Ultima Scriptura — Edinburgh
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The Complete 17-Book Reading Order

New here? This is the order. Phase One is The Genesis Series — nine origin novels (the Sonya Trilogy is live now; Mateo and Lucas trilogies forthcoming). Phase Two is Between Heaven and Hell — the eight-book main series. Each phase reads as its own arc; together they tell the full universe.

SERIES 1 The Genesis Series Nine origin novels · Sonya, Mateo, Lucas · Sonya Trilogy live now
Sonya: Born
Sonya: Born Innocence isn't weakness. It's a beginning.
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Sonya: Betrayed
Sonya: Betrayed She trusted the institution. The institution chose him.
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Sonya: Reborn
Sonya: Reborn She did not let go. She came back.
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Mateo: Born
Mateo: Born He heard her confession. He never forgot her voice.
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Mateo: Betrayed
Mateo: Betrayed The collar couldn't hold what he knew.
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Mateo: Reborn
Mateo: Reborn The answer he never gave. He wrote it down instead.
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Lucas: Born
Lucas: Born Truth is not discovered. It is designed.
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Lucas: Betrayed
Lucas: Betrayed They were never investigating him. They were his subjects.
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Mateo: Reborn
Mateo: Reborn The answer he never gave. He wrote it down instead.
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Lucas: Reborn
Lucas: Reborn The diagnostician. The curriculum. Edinburgh.
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SERIES 2 Between Heaven and Hell The eight-book main series · Rome to Edinburgh
Pride — Rome
Pride — Rome Where faith ends and desire begins.
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Greed — Venice
Greed — Venice The love of what cannot ultimately be possessed.
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Envy — Florence
Envy — Florence The sorrow of another's good.
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Lust — Paris
Lust — Paris The disordered love that confuses the carrier for the carried. Just launched wide — Apple, Kobo, B&N, Smashwords + more.
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Gluttony — Barcelona
Gluttony — Barcelona Taking too daintily.
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Wrath — Seville
Wrath — Seville Where justice becomes judgment.
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Sloth — Prague
Sloth — Prague Acedia — the noonday demon.
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Edinburgh
Edinburgh Where all truths are revealed.
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Nine Books. Three Origins. One Truth.

Before Pride. Before Rome. Before the curriculum. Three lives form on three different continents — a girl in a confessional booth, a seminarian who hears her, and a young academic learning to design what others will only later call evil.

Watch for the sign. It appears on every cover. Its meaning becomes clear in Edinburgh.

Sonya: Born — Book 1 of the prequel trilogy
Prequel · Book One
Sonya: Born
Coming Soon

"Innocence isn't weakness. It's a beginning." A girl in a confessional booth tells the truth. The world that hears her changes the shape of her life.

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Mateo: Born — Book 2 of the prequel trilogy
Prequel · Book Two
Mateo: Born
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"He heard her confession. He never forgot her voice." A San Antonio kid in a Roman seminary discovers what he believes — and what he can no longer pretend not to know.

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Lucas: Born — Book 3 of the prequel trilogy
Prequel · Book Three
Lucas: Born
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"Truth is not discovered. It is designed." A young academic discovers that the most dangerous philosophy is the one no one is willing to write down.

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Sonya: Betrayed — Book 4 of the prequel trilogy
Prequel · Book Four
Sonya: Betrayed
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"She trusted the institution. The institution chose him." The recruitment that became a cage. The training that became a weapon. The first time the system asks her to look the other way.

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Mateo: Betrayed — Book 5 of the prequel trilogy
Prequel · Book Five
Mateo: Betrayed
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"The collar couldn't hold what he knew." The story he wrote that no one was ready to read. The night he stopped being a priest. The morning he became a witness.

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Lucas: Betrayed — Book 6 of the prequel trilogy
Prequel · Book Six
Lucas: Betrayed
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"They were never investigating him. They were his subjects." Lucas learns that the people who think they are studying him are the case file he has been keeping all along.

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Sonya: Reborn — Book 7 of the prequel trilogy
Prequel · Book Seven
Sonya: Reborn
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"She survived everything they sent." What walks out of the operator program is no longer the girl who walked in. The Pride era begins here.

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Mateo: Reborn — Book 8 of the prequel trilogy
Prequel · Book Eight
Mateo: Reborn
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"The answer he never gave. He wrote it down instead." The article that named names. The byline that read Matthew Padilla. The journalist the Professor would eventually choose as his reader.

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Lucas: Reborn — Book 9 of the prequel trilogy
Prequel · Book Nine
Lucas: Reborn
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"The diagnostician. The curriculum. Edinburgh." The final piece of the prequel arc. The moment the Professor became The Professor. The lesson that begins on the first page of Pride.

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The Premise

Seven Sins. Seven Cities. One Curriculum.

A traveling theologian the world knows as "The Professor" has spent thirty-four years studying sin. Now he's teaching it — one murder at a time. Each victim is chosen for the specific sin they embody. Each crime scene is staged as a theological argument. Each parchment is signed with a Latin word.

The Detective

Sonya Logan. Interpol Commissioner. She reads crime scenes the way other people read confessions — completely, and without flinching.

The Journalist

Mateo. Ex-priest turned investigative journalist. He left the Church but the Church never left his theology. The Professor chose him as his reader.

The Professor

Fifty-five. Silver hair. Leather satchel. The most dangerous theologian alive. He doesn't kill for pleasure. He kills for precision.

The Series

Eight Books. Eight Sins. Eight Cities. Plus Nine Prequels.

Each book can be read as a standalone thriller. Together, they form a single argument about what happens when someone decides to hold the world accountable for its sins.

Pride - Rome

Pride

Rome • Book 1
"Initium omnis peccati superbia."

A Cardinal is found dead in the Borghese Gallery, arranged in the posture of absolute visibility. A parchment beside his hand reads: Superbia. Interpol Commissioner Sonya Logan arrives to find a crime scene staged as a theological argument.

POV: Sonya Logan
$2.99
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Greed - Venice

Greed

Venice • Book 2
"The love of what cannot ultimately be possessed."

A Venetian art dealer is found face-down in a deconsecrated church, seven Byzantine coins around him. Mateo follows the curriculum from Venice to Florence to Paris, racing to reach the next victim before the Professor's lesson is complete.

POV: Mateo
$4.99
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Envy - Florence

Envy

Florence • Book 3
"The sorrow of another's good."

For the first time, the story is told from the Professor's perspective. Thirty-four years of studying sin. Eighteen months of studying one man. Two broken mirrors flanking a chair in the Uffizi's secondary corridor. The self in front of the thing it could not become.

POV: The Professor
$4.99
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Lust - Paris

Lust

Paris • Book 4
"The disordered love that confuses the carrier for the carried."

Sonya's book. The investigation reaches Paris, and with it, the unraveling of everything she has kept partitioned. The submissive voice she has been managing since Rome finally surfaces. The door stays open.

POV: Sonya Logan
247 pages • 26 chapters • 61,820 words
$4.99 · Just launched wide
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Gluttony - Barcelona

Gluttony

Barcelona • Book 5
"Taking too daintily."

Mateo's formation arc peaks in the city of appetite. A restaurateur who built an empire on other people's harvests. The Sagrada Familia reaching toward what architecture cannot grasp. And a parchment annotated with one word: Sapiens.

POV: Mateo
$4.99
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Wrath - Seville

Wrath

Seville • Book 6
"Where justice becomes judgment."

A man who spent twenty-two years as the Church's legal enforcer, unable to distinguish between institutional power and divine justice. The Professor's most personal lesson. The burning cross is not metaphor.

POV: The Professor
$4.99
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Sloth - Prague

Sloth

Prague • Book 7
"Acedia — the noonday demon."

The seventh lesson. The sin that is not laziness but the refusal to become what you were made to be. Prague in winter. Sonya's submissive arc reaches its peak. The penultimate parchment. Edinburgh is next.

POV: Sonya Logan
$4.99
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Ultima Scriptura - Edinburgh

Ultima Scriptura

Edinburgh • Book 8
"Where all truths are revealed."

The final lesson. The city of the Reformation. The Professor invited Mateo to Edinburgh. Mateo accepted. All three arcs converge. The conversation that has been building across seven cities finally takes place in the room where it was always going to take place.

POV: All Three
$4.99
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The Curriculum

Follow the Trail

Seven parchments. Seven Latin words. One path across Europe that ends where the Reformation began.

Superbia
Rome
Avaritia
Venice
Invidia
Florence
Luxuria
Paris
Gula
Barcelona
Ira
Seville
Acedia
Prague
Ultima
Edinburgh
Three Points of View

Who Tells the Story

Each book shifts perspective. The detective who hunts. The journalist who reads. The professor who teaches. The truth lives in the space between them.

Sonya Logan

Sonya Logan

The Detective

Interpol Commissioner. Blonde. Precise. She reads crime scenes the way theologians read scripture — looking for what the text doesn't say. She feels the theology before she can name it. The Professor chose her as his audience.

Talk to Sonya →
Mateo

Mateo

The Journalist

Mateo Padilla. Ex-priest. Forty-two. Hispanic/Italian-American, born in San Antonio. He left the seminary after writing an article the institution couldn't forgive. He carries a leather satchel and a notebook and the specific patience of a man who has been honest about difficult things for a very long time.

Talk to Mateo →
The Professor

The Professor

The Killer

Heinrich Paulus. Fifty-five. German. Silver hair. Thirty-four years of studying sin in the tradition. He does not kill for pleasure. He kills for diagnostic precision. His victims are chosen because they embody the specific sin with the accuracy his framework requires.

Talk to the Professor →
Character Sessions

The Intake

Three subjects. Three psychological evaluations. Select a character and ask them anything. Each answer builds their canon. What they reveal is yours to keep.

Pride · Rome
35 · INFJ · Rome
Sonya
Special International Crimes Agent
"She sees everything. She tells you what she chooses."
Begin Session →
Greed · Venice
42 · INFP · Venice
Mateo Padilla
Former Priest · Investigative Journalist
"He left God. God hasn't left him."
Begin Session →
Envy · Florence
55 · INTJ · Florence
The Professor
Academic · Thanatologist
"He has been waiting for you to ask the right question."
Begin Session →
Session Active

Suggested Questions
Free Prequel

Start with The Confession

Before the first murder. Before the parchments. Before Rome. Mateo was a priest with a secret and a seminary that wasn't ready to hear it.

The Confession

A Between Heaven and Hell Prequel

The night before Mateo left the Church, he sat in a chapel and told the truth for the first time. What he confessed changed everything. This is the story of how an ex-priest became the only person a serial killer trusted to read his work.

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The Author
Dr. Matthew Lewis, PsyD
Story Architect

Dr. Matthew Lewis is a Story Architect. Between Heaven and Hell is his debut universe — 26 books across four series arcs spanning Rome to Edinburgh. He designs the blueprint of each story and uses every tool available — research, theology, psychology, and AI — to render it. Published by Lewis Publishing House.

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Meet the Characters

The Faces Behind the Sins

Mateo, Sonya, and the Professor — Greed, Pride, Envy Sonya, Mateo, and the Professor — Lust, Gluttony, Wrath
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