Rules of Proximity: A Forced-Proximity, Secret-Son Billionaire Romance (Secret Baby Billionaires’ Club #3)

Sloane Maddox


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[?] · 0 ratings · 212 pages · Published: 09 Oct 2025
He’s the corporate shark who rules Wall Street. She’s the one rival he could never conquer. And their one night together created a secret he’s about to expose.

Caleb Thorne lives by a simple, ruthless win at all costs. In the billion-dollar war for Apex Technologies, his sole focus is crushing his fiercest competitor, the brilliant and guarded Sloan Madison. But when a single photograph reveals Sloan with a one-year-old boy who has his unmistakable eyes, the battlefield irrevocably shifts from the boardroom to the nursery.

Forced into a tense confrontation, Caleb discovers Sloan has been playing a different game entirely—one where the stakes aren’t just stock prices, but the life of the son he never knew he had. His instincts scream for a hostile takeover, but his father’s brutal playbook won’t work when it comes to family.

Just as they forge a fragile, distrustful truce, a ghost from their past emerges to hunt them both. An old enemy launches a catastrophic attack, targeting not just their empires, but their children. Now, Caleb and Sloan must form an unwilling alliance, a dangerous merger of enemies where the rules of proximity are constantly broken and the lines between hatred and passion blur into a deadly obsession.

Perfect for fans of L.J. Shen and Sophie Lark, this is a gripping, high-stakes secret baby, enemies-to-lovers romance where the only thing more dangerous than the enemy hunting them is the explosive chemistry they can no longer deny.
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