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Secret Heirs of Billionaires

The Secret Heirs of Billionaires book series by multiple authors includes books Unwrapping the Castelli Secret, Brunetti's Secret Son, The Secret to Marrying Marchesi, and several more. See the complete Secret Heirs of Billionaires series book list in order, box sets or omnibus editions, and companion titles.
29 Books
#1
Unwrapping the Castelli Secret - Book #1 of the Secret Heirs of Billionaires

Unwrapping the Castelli Secret

Caitlin Crews
From $4.99
#2
Brunetti's Secret Son - Book #2 of the Secret Heirs of Billionaires

Brunetti's Secret Son

Maya Blake, Maisey Yates, Neesh Santiago
From $4.19
#3
The Secret to Marrying Marchesi - Book #3 of the Secret Heirs of Billionaires

The Secret to Marrying Marchesi

Amanda Cinelli
From $4.09
#4
Demetriou Demands His Child - Book #4 of the Secret Heirs of Billionaires

Demetriou Demands His Child

Kate Hewitt
From $6.09
#5
El Heredero Secreto del Jeque: - Book #5 of the Secret Heirs of Billionaires

El Heredero Secreto del Jeque:

Annie West
From $10.79
#6
The Sheikh's Secret Son - Book #6 of the Secret Heirs of Billionaires

The Sheikh's Secret Son

Maggie Cox
From $6.99
#7
The Innocent's Shameful Secret - Book #7 of the Secret Heirs of Billionaires

The Innocent's Shameful Secret

Sara Craven
From $10.39
#8
The Greek's Pleasurable Revenge - Book #8 of the Secret Heirs of Billionaires

The Greek's Pleasurable Revenge

Andie Brock
From $5.79
#9
Un segreto per il greco - Book #9 of the Secret Heirs of Billionaires

Un segreto per il greco

Susan Stephens
From $5.09
#10
Carrying the Spaniard's Child - Book #10 of the Secret Heirs of Billionaires

Carrying the Spaniard's Child

Jennie Lucas
From $5.59
#11
Kidnapped for the Tycoon's Baby - Book #11 of the Secret Heirs of Billionaires

Kidnapped for the Tycoon's Baby

Louise Fuller
From $7.49
#12
The Greek's Secret Son - Book #12 of the Secret Heirs of Billionaires

The Greek's Secret Son

Julia James
From $5.19
#13
Claiming His Hidden Heir - Book #13 of the Secret Heirs of Billionaires

Claiming His Hidden Heir

Carol Marinelli
From $5.89
#14
The Secret The Italian Claims - Book #14 of the Secret Heirs of Billionaires

The Secret The Italian Claims

Jennie Lucas
From $5.49
#15
Wed for His Secret Heir - Book #15 of the Secret Heirs of Billionaires

Wed for His Secret Heir

Chantelle Shaw
From $6.09
#16
The Heir the Prince Secures - Book #16 of the Secret Heirs of Billionaires

The Heir the Prince Secures

Jennie Lucas
From $4.79
#17
#18
The Baby the Billionaire Demands - Book #18 of the Secret Heirs of Billionaires

The Baby the Billionaire Demands

Jennie Lucas
From $5.09
#19
Married for His One-Night Heir - Book #19 of the Secret Heirs of Billionaires

Married for His One-Night Heir

Jennifer Hayward
From $5.09
#20
The Secret Kept From The Italian - Book #20 of the Secret Heirs of Billionaires

The Secret Kept From The Italian

Kate Hewitt
From $5.09
#21
Demanding His Secret Son - Book #21 of the Secret Heirs of Billionaires

Demanding His Secret Son

Louise Fuller
From $4.49
#23
The Sicilian's Secret Son - Book #23 of the Secret Heirs of Billionaires

The Sicilian's Secret Son

Angela Bissell
From $5.69
#24
Claimed for the Sheikh's Shock Son - Book #24 of the Secret Heirs of Billionaires

Claimed for the Sheikh's Shock Son

Carol Marinelli
From $4.99
#25
Shock Heir for the King - Book #25 of the Secret Heirs of Billionaires

Shock Heir for the King

Clare Connelly
From $6.49
#26
Demanding His Hidden Heir - Book #26 of the Secret Heirs of Billionaires

Demanding His Hidden Heir

Jackie Ashenden
From $6.09
#28
Sheikh's Royal Baby Revelation - Book #28 of the Secret Heirs of Billionaires

Sheikh's Royal Baby Revelation

Annie West
From $4.05
#30
Unwrapping the Innocent's Secret - Book #30 of the Secret Heirs of Billionaires

Unwrapping the Innocent's Secret

Caitlin Crews
From $6.49
#31
Proof of Their One-Night Passion - Book #31 of the Secret Heirs of Billionaires

Proof of Their One-Night Passion

Louise Fuller
From $6.09
#32
The Italian's Unexpected Baby - Book #32 of the Secret Heirs of Billionaires

The Italian's Unexpected Baby

Kate Hewitt
From $4.69
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