Zero Day

A Sapphic Romance
by Aurora North

📚 Available at your favorite retailer

Pairing: F/F
Heat: 🌶️🌶️🌶️🌶️🌶️ Inferno
Tropes: Grumpy/Sunshine, Forced Proximity, Boss/Employee, Enemies to Lovers, Ice Queen, Power Exchange, Touch Starved, Suit Kink, Slow Burn, Brat/Tamer, Competence Kink, Hurt/Comfort, Found Family, She Falls First, Office Romance

She built a fortress no one could breach. Then a hacker in combat boots walked through the front door.

Helena Frost is the CEO of Citadel Systems — Manhattan’s most elite cybersecurity firm. She built it from the wreckage of her mother’s failure, and she runs it the way she runs her life: with absolute control, bespoke suits, and a firewall around her heart that hasn’t been breached in eighteen years. She doesn’t do soft. She doesn’t do messy. She doesn’t do people.

Kit “Glitch” O’Malley is a white-hat hacker with copper hair, circuit-to-wildflower tattoo sleeves, and a mouth that won’t quit. Raised in foster care, she learned early that people are unreliable — but machines do what you tell them. She’s been hired by Citadel’s board to find a data leak, and the job requires fourteen nights locked in Helena’s penthouse office from 10 p.m. to 4 a.m.

Two weeks. One glass tower. A woman made of ice and a woman made of fire, trapped together while someone inside Citadel is tearing the company apart from the inside.

Helena catalogues Kit as a threat: the freckles, the fairy lights, the sticky buns eaten with devastating slowness. Kit catalogues Helena as a locked system — every port sealed, every wall reinforced, one tell: she rotates her cufflink when she’s losing control.

What starts as friction becomes fire. What starts as fire becomes something neither of them has a protocol for. And when the real betrayal comes — not from outside, but from someone Helena trusted for years — the only person who can save Citadel is the one Helena just threw out.

Zero Day is a 53,000-word high-heat sapphic contemporary romance featuring a CEO who doesn’t know how to be touched and a hacker who won’t stop trying, forced proximity in a glass tower, three explicit scenes that escalate from hate-fuck to worship, a villain you’ll love to hate, corporate espionage, fairy lights as a love language, and a guaranteed happily ever after. Standalone.

⚠️ Content Notes

This book contains explicit sexual content including: multiple detailed F/F encounters, oral sex, manual stimulation, power exchange dynamics, rough sex (consensual), desk sex, suit kink, edging, emotional intensity during intimate scenes. Also includes: on-page panic attack, parental death (referenced), foster care background, workplace power dynamics, corporate fraud and betrayal, emotional manipulation by a secondary villain, and a woman learning that vulnerability isn’t the same as weakness. All content between consenting adults. Guaranteed HEA with epilogue.

📖 Read Chapter One Free

Chapter One: The Intrusion

Helena Frost did not believe in chaos.

This was not a philosophical position. It was an operational one. Helena’s life was a closed system — a network of carefully managed variables designed to minimize entropy, maximize output, and eliminate the kind of unpredictable human interference that had, in her experience, a one hundred percent failure rate. She ran her company the way she ran her body: on four hours of sleep, three cups of black coffee, and a ruthless intolerance for anything that deviated from the plan.

The plan, tonight, was simple. Quarterly security audit. Review the penetration test results from the external firm. Flag anomalies. File report. Leave the building by midnight. Sleep by one. Wake at five. Repeat.

It was 10:07 p.m. on a Tuesday in October, and Helena was alone on the fifty-second floor of Citadel Tower, which was exactly how she preferred it. The penthouse office — her office — occupied the entire top floor: glass walls on three sides, the Manhattan skyline performing its nightly light show for an audience of one. The furniture was minimal. The desk was black walnut, custom-built, large enough to land a helicopter on. The couch was leather, the color of charcoal, selected not for comfort but for the message it sent to anyone who sat on it: you are a guest here, and your visit will be brief.

Helena sat behind her desk in a suit the color of smoke — Savile Row, bespoke, cut so precisely that it moved with her body like a second skin — and reviewed the Q3 numbers on her laptop with the focused intensity of a surgeon midway through an operation. Her dark hair was pulled into a chignon so tight it could have been used as a weapon. Her reading glasses — the only concession she made to biology — sat low on her nose. Her posture was a masterclass in vertebral architecture.

The lights went out.

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Frequently Asked Questions

How steamy is it?
🔥🔥🔥🔥🔥 (5/5 flames). Three fully explicit F/F scenes that escalate from a hate-fuck on a desk to slow-burn worship on a couch to a full emotional surrender that will wreck you. The heat serves the story — every scene advances the relationship and the power dynamic.

What’s the power dynamic?
Helena starts as the dominant top — all control, all suit, all CEO voice. Kit starts as the bratty sub who tests every boundary. By the end, the dynamic switches completely. Watching Helena Frost learn to surrender is the emotional core of the book.

Is there a villain?
Yes. Vanessa Liu, Helena’s VP, is orchestrating a corporate espionage operation and frames Kit to cover her tracks. The betrayal scene will make you throw your Kindle.

Is there a happy ending?
Always. Full HEA including: Kit as Chief Security Officer, a Park Slope apartment with a stove that has more than two settings, succulents named after encryption algorithms, and an under-desk epilogue during a board Zoom call that will make you cackle. No cliffhangers.