Modern Romance March 2026 Books 1-4: Her Two Greek Secrets (Billion-Dollar Bride Swap) / King's Heir Ultimatum / Marriage Made in Revenge / Boss's Bride Price (Mills & Boon Collections)

By Lynne Graham , Lorraine Hall , Michelle Smart and Heidi Rice

Published: March 2026

  • From vow-breaking kings to vengeful tycoons—four addictive billionaire romances filled with marriage bargains, forbidden nights, and red-hot chemistry!

    Perfect for fans of:

    💸 Billionaires

    💍 Marriage of convenience

    😈 Revenge

    👶 Accidental pregnancy

    Her Two Greek Secrets by Lynne Graham

    One clandestine night… Two hidden heirs!

    Tabby must accept a convenient proposal. It’s the quickest way to secure her mother’s medical care. Only, innocent Tabby wants control over who she’ll lose her virginity to. The moment she feels Aristide Romanos’s searing touch, she knows it’s him! Yet their hot night ends in ice-cold fury when he discovers her altar arrangement. Then Tabby tells him the wedding’s off…because she’s carrying his twins!

    King's Heir Ultimatum byLorraine Hall

    A secret to claim. A queen to conquer!

    King Alexandre wed Ines solely to secure a royal baby. Except now that he has a nephew, he no longer needs his own heir. So his usually compliant wife’s ultimatum—give her the child he promised her or she’ll leave—astounds him. And her fiery declaration finally forces Alexandre to face their incendiary need…and its nine-month consequences!

    Marriage Made in Revenge byMichelle Smart

    Till revenge do them part…

    Beth feels nothing but hate for the billionaire who broke her. Xavi left to focus on the company their grandfathers co-founded. Years later, they’re business partners, and to secure his family legacy, he proposes! Sure, she’ll say ‘I do’—then exact her revenge by stealing his precious company! Except their chemistry is still ablaze and time has only intensified Xavi’s intoxicating effect on her heart…

    Boss's Bride Price byHeidi Rice

    Claiming his inheritance means claiming a wife!

    Dario Lorenti needs a bride—fast—to inherit his detestable father’s legacy. The perfect solution? Wed the spirited manager of his ancestral home. After all, in Dario’s world, everyone has a price. Tallulah Whittaker agrees if Dario makes an overdue investment in

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