The Obsidian Empire — PlotProse
SHARE OF ROMANCE READER CONVERSATION · 8 WEEKS TO 20 JUL 2026
PARANORMAL 4.62% ▲ +0.11pp SMALL TOWN 4.37% ▼ 1.26pp MM ROMANCE 4.08% ▲ +1.07pp CONTEMPORARY 3.96% ▼ 0.91pp BI ROMANCE 3.32% ▼ 0.58pp CLEAN & WHOLESOME 3.22% ▲ +0.65pp MAFIA ROMANCE 3.20% ▼ 0.58pp DARK ROMANCE 3.10% ▼ 0.57pp WESTERN 2.96% ▲ +0.28pp WORKPLACE 2.89% ▲ +0.27pp ACTION & ADVENTURE 2.68% ▲ +0.70pp REGENCY 2.63% ▼ 0.14pp BLACK AFRICAN AMERICAN 2.56% ▲ +1.04pp POLYAMORY 2.49% ▼ 0.08pp ENEMIES TO LOVERS 2.48% ▲ +0.41pp ALPHA MALE 2.37% ▲ +0.22pp ROM-COM 2.33% ▲ +0.68pp SCI-FI ROMANCE 2.30% ▼ 0.11pp

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The Obsidian Empire
PLOTPROSE · PRODUCT

The Obsidian Empire

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$286$343

Charged as R5 000.00. PlotProse bills in South African rand at R17.50 to the dollar — you will see this figure at checkout before you pay.

Dark Romance / Romantic Suspense / Billionaire

3-Book Series • Obsidian Estates • Alternating First Person • HEA per book

Three women. Three secrets with a heartbeat. One empire of glass where the most dangerous thing you can hide is a child.

 

Obsidian Estates is built on control—billion-dollar deals, locked drawers, and men who never let themselves want anything they can’t own. But each of these men is about to meet the woman who unmakes him, and each of these women is guarding the same impossible secret: a child the dynasty doesn’t know exists.

As a coldly brilliant rival named Julian Croft circles every empire with a dossier that always holds one more certificate than anyone expected, three couples discover that the line between possession and protection—between ruin and redemption—is thinner than a single signature.

Dark, dominant, and high-heat, with a hidden heir at the center of every storm.

 

Book 1 — The Obsidian Heir (Clara & Elias)

“Billionaire Elias Vance demands total control of his empire—and the flawless assistant who runs it. But Clara Hayes is hiding a chronically ill son and the one secret that could topple his dynasty.”

Clara Hayes is the most composed woman on the fortieth floor of Obsidian Estates—and the most desperate. By day she is billionaire Elias Vance’s flawless executive assistant; by night, the exhausted, terrified mother of a chronically ill little boy, paying for his care out of a salary that depends entirely on the secret staying buried.

Elias trusts no one and needs no one. So when his composed assistant begins igniting something he refuses to name, he does what he always does—he claims, he commands, he consumes. And Clara, against every instinct screaming at her to run, surrenders to a man who could give her everything or take the only thing that matters.

Then Julian Croft arrives, launching a hostile audit engineered to expose Elias’s every liability—and his investigators are very good at finding what people hide. A locked drawer. A thirty-six-month gap. A child whose existence could shatter everything. Clara must decide how much she will risk to protect her son—and Elias must decide what his empire is truly worth.

Secret Baby / Hidden Child • Billionaire Boss × Assistant • Forbidden Workplace Romance • Possessive Alpha Hero • Enemies-to-Lovers • Forced Proximity • Weaponized Secret & Blackmail • He Gives Up the Kingdom
Book 2 — The Obsidian Legacy (Maya & Victor)

“Maya Brooks spent three years building a fake life to infiltrate Obsidian Estates and protect her late sister’s son. She didn’t plan on Victor Sterling—the ruthless heir who decides he’s going to keep her.”

Maya Brooks has spent three years becoming someone else: a fabricated résumé, a rehearsed history, a face that never slips—all engineered to get her inside Obsidian Estates and close to Victor Sterling. She blames the Sterling dynasty for destroying her sister, and the dynasty has no idea that the little boy Maya is raising is its hidden heir.

The plan was simple: infiltrate, gather leverage, secure a future for Leo, and disappear. Victor Sterling was not part of the plan. He is glacial, exacting, a man who liquidates companies the way other people clear their inboxes—and his control cracks, just slightly, every time she beats him at his own game.

Then Julian Croft drops a dossier on Victor’s desk—a death certificate, a birth certificate, the truth Maya buried, laid bare in a rival’s elegant trap. Now the man she came to ruin holds the future of the only family she has left.

Dark Billionaire Heir • Undercover Infiltrator Heroine • Enemies-to-Lovers / Allies in War • Secret Heir / Hidden Child • Revenge Turned to Love • Forced Proximity (The Golden Cage) • Forbidden & Dangerous Attraction • Corporate Espionage & Sabotage
Book 3 — The Obsidian Sovereign (Nora & Silas)

“Forensic auditor Nora Thorne takes the one job that can clear her daughter’s medical debt: a hostile audit of billionaire Silas Mercer’s private accounts. The catch—Silas is the man from the night she’s never told anyone about.”

Nora Thorne counts everything—debts, risks, the exact number of months she has hidden her daughter from the world. A senior forensic auditor drowning in medical bills, she accepts the one contract that can save her little girl: a hostile, high-stakes audit of billionaire Silas Mercer’s private ledgers. And it sends her straight back into the orbit of the one man she swore she’d never see again. Because Nora has audited Silas Mercer before, in a way no spreadsheet records—and the secret asleep under a pink quilt across the city has his eyes.

Silas built Obsidian Estates into a fortress of glass and control—until the auditor sent to dismantle his secrets reignites a hunger he’s spent years denying. He locks her in his world, and Nora, against every cold calculation she lives by, lets him.

Then the numbers stop adding up. A forty-two-million-dollar discrepancy. A rival circling with elevator logs and a deep-dive investigation. And a foil-stamped dossier moving toward Silas’s desk that holds the one figure Nora never entered into any ledger—a child’s birth certificate.

Secret Baby / Hidden Heir • Second-Chance Romance • Billionaire CEO • Forced Proximity • Possessive Protector Hero • Enemies-to-Lovers • The Audit (Forensic MacGuffin) • He Gives Up the Empire
Throughout the Series
Secret Baby / Hidden Heir at the center of every book
Possessive, Controlling Billionaire Heroes
Forbidden Romance with the Woman Who Could Topple His Empire
Enemies-to-Lovers
Forced Proximity — the golden cage
A Rival’s Weaponized Dossier (Julian Croft)
He Gives Up the Empire to Protect His Family
High-Heat, Open-Door Intimacy with Dominance Dynamics
Series Details
Series:  The Obsidian Empire — 3 Books (trilogy, complete)
Genre:  Dark Romance / Romantic Suspense — Billionaire
POV:  Alternating First Person
Couples:  Clara Hayes & Elias Vance • Maya Brooks & Victor Sterling • Nora Thorne & Silas Mercer
Setting:  Obsidian Estates — glass towers, locked drawers, hostile audits
Format:  Three interconnected standalones with one shared rival antagonist
Ending:  HEA in every book
Content Notes
Secret baby / hidden child themes throughout
Chronically ill child and medical-debt stakes (Books 1 & 3)
Blackmail, hostile audits, and coercive corporate tactics
Explicit open-door intimate scenes with dominance dynamics
Heat Level
High-Heat, Open-Door — explicit intimate scenes; dark themes and dominance dynamics.

What You Get

The complete Obsidian Empire trilogy launch package — three fully developed dark billionaire romance concepts ready to write or commission. Includes full synopses for all three books, character arcs, trope structures, shared world-building (Obsidian Estates, Julian Croft and his dossiers), heat-level guidance, and three HEA resolution beats. One-of-a-kind — sold only once.

Every signature is a threat. Every truth has a heartbeat. ♥

We run your trilogy through Go For Launch on AuthorsStarport for you — a full line & developmental edit that gets the hardest, heaviest edits done before the books ever reach you.

  • Full line & developmental editing — normally over $1,000
  • Roughly 48 hours (Mon–Fri) to get your manuscripts back
  • Save more than 65% — the whole trilogy, done for you
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