The Secret Billionaires books in order

The Secret Billionaires is a Harlequin romance series by Dani Collins featuring three books about billionaires hiding their wealth while falling in love.

Reading order

# Title Published Author Buy on Amazon
1 Di Marcello’s Secret Son 2017 Dani Collins Buy
2 Xenakis’s Convenient Bride 2017 Dani Collins Buy
3 Salazar’s One-Night Heir 2017 Dani Collins Buy

The Secret Billionaires gathers three 2017 Harlequin romances featuring wealthy men with hidden connections. Di Marcello’s Secret Son, Xenakis’s Convenient Bride, and Salazar’s One-Night Heir each pair a billionaire with a surprise — a secret child, a marriage of convenience, an unexpected heir — that forces a reckoning with both their wealth and their hearts.

Frequently Asked Questions

How many books are in the The Secret Billionaires series?

There are three books in the The Secret Billionaires series, published in 2017.

What is the first book in the The Secret Billionaires series?

The first book in the The Secret Billionaires series is Di Marcello’s Secret Son, published in 2017.

What is The Secret Billionaires series about?

“The three books — Di Marcello’s Secret Son, Xenakis’s Convenient Bride, and Salazar’s One-Night Heir — all from 2017, feature billionaires whose hidden identities and secret connections complicate their romances. The ‘secret’ in each title points to children, marriages, and heirs that the billionaire heroes didn’t know about.”

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