Grant Harrington has finally said the words that matter.

Now he may lose everything that matters with them.

What started as a calculated arrangement has become something real—but reality comes with consequences Grant can no longer control.

Julia is no longer just part of the plan.

She's everything.

And that makes her a target.

When Lydia is unexpectedly released, the fragile stability Grant fought to build begins to unravel. One attack follows another—each more dangerous than the last.

Julia is poisoned.

Kyle disappears without a trace.

And the powerful forces behind DG Industries move to take everything Grant has built.

His company.

His family.

His future.

As pressure closes in from every direction, Grant is forced to confront a truth he can't ignore—power and wealth won't save him this time.

Because the one thing he can't afford to lose is the one thing he may not be able to protect.

And if he fails now, there will be nothing left to fight for.

A high-drama, emotionally intense romance filled with danger, betrayal, and impossible stakes.

Believing in a Billionaire is Book 7 in the Hearts & Holdings series—the explosive penultimate chapter as Grant and Julia's story races toward its final conclusion. For the best experience, start with Book 1, Bet on a Billionaire.