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Silver Gravity Books

Undercover Love: The Dark Horizon Series, Book 2, Jordan Fox

Undercover Love: The Dark Horizon Series, Book 2, Jordan Fox

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Action & adventure, Thriller & suspense, Romance, and Crime & mystery

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A Sizzling Romantic Thriller Where Duty and Desire Collide in the Shadows!

Lose yourself in Undercover Love: Operation Dusk, the explosive second installment in Jordan Fox's Dark Horizon Series. This white-hot romantic thriller plunges readers into a dangerous world where loyalty is tested, passions ignite, and nothing is as it seems.

When elite MI5 agent Natalie Fox accepts her most perilous assignment yet—infiltrating the notorious Russo Syndicate—she never expects to find herself caught in a web of conflicting loyalties and forbidden desire. Her target? The enigmatic Adrian "Ace" Russo, a charismatic crime lieutenant whose magnetic presence hides unexpected depths and dangerous secrets.

As Natalie navigates London's treacherous criminal underworld, she discovers shocking connections between the syndicate and the shadowy network known as the Dark Horizon. But when Ace shows glimpses of a moral code that challenges everything she believes about him, Natalie finds herself drawn into a passionate affair that could cost her everything—her career, her freedom, and possibly her life.

From the gritty streets of London to the dazzling lights of Las Vegas, Undercover Love: Operation Dusk delivers heart-stopping action, sizzling chemistry, and impossible choices. When protecting innocent lives puts her mission at risk, Natalie must decide: follow her duty or follow her heart? And as the lines between right and wrong blur, one question remains: is redemption possible for a man like Ace?

Perfect for fans of:

  • Enemies-to-lovers romantic suspense
  • Undercover agent stories with high stakes
  • Complex heroes with dark pasts and hidden hearts

With its intoxicating blend of danger, passion, and moral complexity, Jordan Fox's Undercover Love: Operation Dusk will keep you turning pages long into the night. 

ABOUT THE SERIES

Step into the gripping universe of The Dark Horizon Series, where Jordan Fox masterfully blends high-stakes action, thrilling conspiracies, and swoon-worthy romance. This electrifying collection of romantic action thrillers delves deep into the hidden forces that manipulate society, uncovering webs of deceit, corruption, and control on a global scale.

In the world of Dark Horizon, unseen powers pull the strings behind corporate espionage, political influence, and even environmental crises. Each standalone novel follows fearless protagonists from different walks of life, who risk everything to expose these shadowy conspiracies—facing layers of deception, moral dilemmas, and personal sacrifice.

If you love edge-of-your-seat thrillers packed with intrigue, danger, and heart, The Dark Horizon Series will leave you breathless.

SERIES READING ORDER

The Dark Horizon Series in Order

  • Book 1: Dangerous Numbers
  • Book 2: Double Deception
  • Book 3: Undercover Love
  • Book 4: Shadows and Steel
  • Book 5: Echoes of the Past
  • Book 6: Beneath the Surface
  • Book 7: Desert Shadows
  • Book 8: Operation Midnight
  • Book 9: Guardian of Secrets
  • Book 10: In the Wild
  • Book 11: Deep Red Threat

• • Book 12: Storm of Deception

READ A SAMPLE

Book in production.

Meet the Author

Jordan Fox has got a personality all her own!  Jordan is the voice of adventure and intrigue, bringing her love of espionage, high-stakes thrills, and cultural mysteries to life in every page of her Dark Horizon Series.

With a spirit as bold as her heroines, Jordan’s stories are packed with intense action, witty banter, and a fearless dive into global conspiracies. She’s the kind of writer who thrives on adrenaline and the unknown, drawing inspiration from hidden alleyways, ancient ruins, and the thrill of adventure in every corner of the globe.

The Dark Horizon Series plunges you into a world where powerful figures pull the strings from the shadows, manipulating everything from technology to personal freedoms. Jordan’s characters don’t just stumble upon danger—they run straight toward it, unafraid to challenge corruption and fight for justice.

So, if you’re ready to escape into a world of heart-racing romance and pulse-pounding suspense, let Jordan Fox be your guide. With her, every book is a journey into the secrets of The Dark Horizon—and you’re invited to uncover them all!

Tropes You'll Love

Shadowy syndicate, lethal operatives, and women too clever to stay kidnapped — each book pairs a dangerous mission with a dangerous attraction.

Spy / Action-Thriller Tropes

  • Shadowy global conspiracy – a network (Dark Horizon) pulling strings behind governments.
  • Off-the-books missions – ops that can’t be traced, plausible deniability.
  • Rogue agents & double-crosses – “We had a leak,” “Someone on the inside sold us out.”
  • Mistaken / stolen identities – perfect for Double Deception.
  • Tech + intel heroine – data, numbers, or code that can topple people (Dangerous Numbers vibe).
  • Ticking-clock missions – stop the shipment, expose the vote, retrieve the drive.

Romantic Suspense / Romantic Thriller Tropes

  • Forced proximity on a mission – posing as a couple, travelling together, safe-house nights.
  • Bodyguard / protector energy – “I’ll keep you safe, but do what I say.”
  • Partners to lovers – start professional, end permanent.
  • Enemies / rivals to lovers – “You’re from the wrong agency” → “Fine, we work together.”
  • Trust vs betrayal – love is risky when everyone lies for a living.

Secrets & Past-Catching-Up Tropes

  • Haunting past opEchoes of the Past signals trauma or unfinished business.
  • Underwater / hidden evidenceBeneath the Surface = secrets literally buried.
  • Desert mission gone wrongDesert Shadows = ambush, extraction, survival.
  • Midnight op / blackout missionOperation Midnight = stealth, no comms.
  • Keeper of classified infoGuardian of Secrets = someone is the vault.

Series / Team Tropes

  • Elite but damaged team – each book follows a different operative.
  • Found family in a covert unit – they bicker, but they show up.
  • Slow reveal of the big bad – every book pulls back another layer of Dark Horizon.
  • Competence porn – smart women, lethal men, everyone good at their job.

Vibes to market

  • high-heat, high-stakes
  • spies + romance

• • secrets, safe houses, foreign cities, and one bed, within reason (:))

Audio Book Sample

Book in production.

Other Book Details

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