The Devious Husband
The final arranged marriage billionaire romance in bestselling author Catharina Maura's Windsors series, following the long-awaited fan-favorite Sierra Windsor.
He's the business rival she can't stand. She's the woman he's secretly loved for years.
Xavier Kingston’s life is turned upside down when his nemesis and business rival, Sierra Windsor, suddenly begins to show interest in a man that isn’t him.
Certain he’s at risk of losing his chance with her forever, Xavier offers the Windsors a deal they cannot refuse: a merger between his company and Windsor Real Estate.
On one condition: Sierra must marry him.
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Catharina Maura
In the world of contemporary romance, Catharina Maura has carved out a space where emotional intensity and slow-burning passion collide. Known for crafting stories that don't shy away from heartbreak, she leads readers into the depths of longing, betrayal, and vulnerability—only to pull them back into the light with endings that feel both hard-earned and deeply satisfying. Her novels aren’t just love stories—they’re emotional rollercoasters with characters you’ll ache for and root for in equal measure.
The Windsors
The Windsors consists of six books — considered a complete series. The current recommended reading order for the series is provided below.

