Operation Billionaire Books in Order

Operation Billionaire is a romantic-comedy trilogy about three women who are tired of bad relationships and ready to take control of their love lives. Their plan is simple on paper: find good men, fall in love, and marry billionaires.

Naturally, nothing stays simple for long.

The series begins with Beatrice Hammersmith, whose dating history has left her with broken hearts and missing appliances. Along with her friends Olivia and Rosalind, she starts Operation Billionaire, a determined but not always practical campaign to meet wealthy men who might also be decent partners. Their friendship is as important as the romance, because each woman has a different reason for wanting a new start.

In How to Marry a Billionaire, Beatrice sets her sights on Cole Stevens, a rich and attractive ranch owner. The plan draws the women, children, and Beatrice’s mother into ranch life, where carefully arranged romantic schemes quickly meet real feelings and real-life complications.

The trilogy then shifts the spotlight. How to Marry Another Billionaire follows Olivia as she takes a job working for billionaire Rock Clarke. Olivia is raising four children, Rock is used to a very different kind of life, and the rest of the Operation Billionaire team is not about to let a little practical difficulty stop their campaign. In How to Marry the Last Billionaire on Earth, Rosalind heads to Bora Bora for a business meeting and finds her plans blown apart by a plane crash and an unwelcome companion.

The books are connected by friendship, not one continuous mystery.

Each story gives one woman her own romance while letting the other members of the group remain involved. Sax uses the billionaire premise for comedy, not wish fulfillment alone. The women have responsibilities, family pressures, old disappointments, and ideas about success that do not always match what they thought they wanted.

The tone is light, sexy, and openly playful. There are big settings, outlandish predicaments, meddling support systems, and romances that become more complicated when the characters stop treating love like a project they can manage. The emotional stakes stay grounded in trust, timing, and whether two people from different worlds can build a life together.

Start with How to Marry a Billionaire. The novels can stand on their own as romances, but beginning with Beatrice gives the clearest introduction to the three friends and their original pact. It also makes the later appearances by Olivia, Rosalind, and their growing circle more satisfying.

This is a series for readers who enjoy friendship-driven romantic comedy, wealthy heroes who are not as uncomplicated as they look, and heroines who refuse to settle for another bad deal.