Grant Harrington has paid to walk away from four marriages.

This time, walking away may cost him everything.

Julia has stayed longer than anyone expected—including herself. What began as a calculated arrangement has become something far more complicated… and far more difficult to leave behind.

But the cracks are growing.

Grant’s world is still under threat, with powerful enemies waiting for the right moment to strike. And inside Harrington House, tensions continue to rise as family, loyalty, and control collide.

When Sierra plans a trip to Julia’s hometown, what should have been a temporary escape quickly becomes something else entirely.

Because the past Julia left behind isn’t as distant as she thought.

An old connection resurfaces.

A life she once understood feels within reach again.

And for the first time, walking away from Grant doesn’t just feel possible—it feels safe.

Until everything goes wrong.

When a sudden storm turns dangerous and Sierra’s life is put at risk, Julia is forced to confront what truly matters—and what she’s willing to lose.

Because staying with Grant means accepting the chaos that comes with him.

But leaving him may mean losing something she can’t replace.

A high-drama, emotionally intense romance filled with secrets, danger, and impossible choices.

Betrayal of a Billionaire is Book 5 in the Hearts & Holdings series, continuing Grant and Julia’s story as their relationship is tested in ways neither of them can ignore. For the best experience, start with Book 1, Bet on a Billionaire.