She came to fix a ranch. She didn't plan to fall for the man who owned it.

Mara Ellis can fix anything. Irrigation pipes. Tractor engines. Fences. But when she walks into a dusty shop in Red Hollow, Montana, she's offered a deal she can't refuse: marry a stranger, save her family's debt, and inherit a set of survey books that could change the valley forever.

Callum Blackthorne is a billionaire rancher with a problem. His family trust requires an heir. His aunt is trying to steal his land. And the woman he's just married is the only one who can save everything he's built. If she doesn't destroy him first.

Three weeks. One ranch. A marriage built on a contract. And a secret worth killing for.

• Marriage of convenience romance with real stakes and slow-burn tension
• Small town ranch settings with cowboys, cattle, and wide-open skies
• Billionaire romance with a hero who has walls and a heroine who breaks them down
• Underdog transformation stories where the overlooked woman becomes the one everyone needs
• Secret wealth and family trust drama with twists that keep you guessing
• Enemies to lovers tension that builds with every chapter

She married him for a debt. She stayed for the truth. And the truth could bury them both.