1 4

Silver Gravity Books

£30.00 GBP
£30.00 GBP
Sale Sold out
Taxes included.
Format (please select):

Dangerous Numbers: Jordan Fox, The Dark Horizon Series, Book 1

Dangerous Numbers: Jordan Fox, The Dark Horizon Series, Book 1

Action & adventure, Thriller & suspense, Business, Suspense, Family, Drama, and Crime & mystery

Every Silver Gravity story centres women with agency.

FREE instant Ebook version with every hardback, paperback or audio sale!

EBOOKS ARE DELIVERED INSTANTLY. YOUR DOWNLOAD LINK ARRIVES BY EMAIL RIGHT AFTER CHECKOUT. PAPERBACKS/HARDBACKS ARE PRINTED TO ORDER AND TYPICALLY SHIP IN 3–7 DAYS.

When the numbers don't add up, the truth becomes deadly.

Lexi Reeves is a top financial analyst with a sharp mind and an unshakable moral compass. When she uncovers evidence of corporate fraud within one of the world's most powerful companies, her life takes a dangerous turn. The deeper she digs, the clearer it becomes: this isn't just about missing money. It's about secrets powerful enough to destroy lives.

Her sister Emma has always dreamed of success, but her ambition blinds her to the dangers lurking in plain sight. What Emma sees as a golden opportunity, Lexi knows is part of a deadly cover-up. Torn between protecting her sister and exposing the truth, Lexi faces a harrowing choice: risk everything, or stay silent and watch innocent people pay the price.

Victor Callahan is a man who plays to win. With his charm, influence, and ruthless determination, he has built an empire on lies. When Lexi threatens to unravel his carefully crafted facade, he will stop at nothing to protect his secrets, even if it means eliminating her.

Set against the high-stakes backdrop of corporate greed and financial conspiracy, Dangerous Numbers is a gripping corporate thriller packed with twists, betrayals, and heart-pounding suspense. Book 1 of the Dark Horizon Series by Jordan Fox, this edge-of-your-seat mystery thriller asks: can Lexi outsmart her enemies, expose the conspiracy, and protect her family? Or will the cost of seeking justice be too high?

Perfect for fans of The Girl on the Train, The Firm, and Big Little Lies, this female-led suspense novel delivers:

  • A fierce and intelligent heroine who refuses to back down
  • Twists and turns that will keep you guessing until the final page
  • A heart-stopping blend of corporate drama, family loyalty, and emotional stakes
  • Available in ebook, paperback, hardback, and audio formats

If you love corporate thrillers, smart heroines, and stories where courage and loyalty are tested to their limits, Dangerous Numbers is your next unputdownable read. Start the Dark Horizon Series today.

About The Dark Horizon Series: Action -Adventure Romance

The Dark Horizon Series is a globe-spanning romantic action-thriller series where hidden networks manipulate governments, corporations, science, and power from the shadows.

Across the series, fearless protagonists uncover conspiracies involving:

  • Corporate espionage
  • Environmental catastrophe
  • Political corruption
  • Secret organisations
  • Financial manipulation
  • Emerging technologies and covert operations

At the centre of every story is another battle:

Whether trust, loyalty, and love can survive in dangerous worlds built on secrecy.

What Kind of Romance Is This?

This series is best described as:

Romantic suspense + conspiracy thriller + action romance

Combining:

  • Slow-burn attraction under pressure
  • Espionage and covert operations
  • Global conspiracies and hidden systems
  • Action-adventure with emotional stakes
  • Intelligent heroines confronting impossible choices

If you enjoy stories where romance develops alongside danger and survival, this series is written for you.

If You Love Romantic Suspense, Spy Fiction, or Global Conspiracies…

Readers who enjoy:

  • Sandra Brown for romantic suspense
  • Nora Roberts for danger and emotional stakes
  • Jason Bourne for espionage and pursuit
  • Mr & Mrs Smith for attraction amid conflict
  • Clive Cussler for globe-spanning action

…will likely enjoy The Dark Horizon Series.

What sets the series apart is its combination of:

Global stakes + hidden systems + emotionally charged relationships

Story Tropes & Reader Appeal

The Dark Horizon books often contain:

  • Forced proximity under dangerous conditions
  • Protector and survivor dynamics
  • Hidden organisations manipulating events
  • Slow-burn attraction
  • Globe-trotting investigations
  • Enemies-to-allies tension
  • Heroine uncovering dangerous truth
  • Mission-based romance

Is This Book For You?

You will likely enjoy this series if you love:

  • Romantic suspense with real danger
  • Female-led action stories
  • Spy fiction with emotional depth
  • International thrillers where attraction complicates survival

You will especially enjoy this instalment if you like books where conspiracies unravel alongside slow-burn chemistry

Do I Need to Read the Series in Order?

Most Dark Horizon novels contain their own central mission and romance and can be enjoyed independently.

Reading in order deepens understanding of:

  • The evolving Dark Horizon network
  • Recurring references and hidden links
  • The wider conspiracy shaping the series world

Recommended starting point:

Book 1: Dangerous Numbers

 About the Author Jordan Fox

Jordan Fox writes romantic suspense and action thrillers filled with espionage, hidden power, and fearless women confronting corruption.

Jordan Fox’s stories combine:

  • Global settings
  • High-stakes missions
  • Emotional tension and attraction
  • Conspiracy and adventure
  • Smart heroines who refuse to stay silent

Her fiction asks:

What would you risk for truth, and who would you risk it for? 

Genres & Themes

  • Romantic Suspense
  • Action Thriller
  • Espionage Fiction
  • Conspiracy Thriller
  • Corporate Thriller
  • Adventure Romance

Core Themes:

  • Trust forged under pressure
  • Love amid crisis and danger
  • Corruption inside powerful institutions
  • Environmental and political manipulation
  • Loyalty versus survival
  • Truth hidden behind wealth and influence
View full details

Reading Order

  1. Dangerous Numbers: Jordan Fox, The Dark Horizon Series, Book 1 ← You are here
  2. Eyes in the Shadows: Jordan Fox, The Dark Horizon Series, Book 2
  3. Undercover Love: Jordan Fox, The Dark Horizon Series, Book 3
  4. Shadows Orbit: Jordan Fox, The Dark Horizon Series, Book 4
  5. Echoes of the Past: Jordan Fox, The Dark Horizon Series, Book 5
  6. Beneath the Surface: The Dark Horizon Series - Jordan Fox - Book 6
  7. Desert Shadows: Jordan Fox, The Dark Horizon Series, Book 7
  8. Operation Midnight: Jordan Fox, The Dark Horizon Series, Book 8
  9. Guardian of Secrets: Jordan Fox, The Dark Horizon Series, Book 9
  10. Into the Wild: Jordan Fox, The Dark Horizon Series, Book 10
  11. Deep Red Threat: Jordan Fox, The Dark Horizon Series, Book 11
  12. Stolen Fate: Jordan Fox, The Dark Horizon Series, Book 12
  13. The Jordan Fox Dark Horizon Ebook Bundle: Books 1–3, Dangerous Numbers, Eyes in the Shadows, Undercover Love
  14. The Jordan Fox Dark Horizon Paperback Bundle: Books 1–3, Dangerous Numbers, Eyes in the Shadows, Undercover Love
1 2