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Reading order

Secret Heirs of Billionaires Books in Order

This page lists the complete Secret Heirs of Billionaires reading order by Caitlin Crews, with book numbers, publication years, and a publication-order view for readers who want to start at the beginning.

Updated 2026-06-22 / 32 books / 2015-2019

Secret Heirs of Billionaires Reading Order

01 Unwrapping the Castelli Secret 2015 Buy
02 Brunetti's Secret Son/ Christmas at the Chatsfield(By: Maya Blake) 2015 Buy
04 The Secret to Marrying Marchesi(By: Amanda Cinelli) 2016 Buy
05 Demetriou Demands His Child(By: Kate Hewitt) 2016 Buy
06 The Desert King's Secret Heir(By: Annie West) 2016 Buy
07 The Sheikh's Secret Son(By: Maggie Cox) 2017 Buy
08 The Innocent's Shameful Secret(By: Sara Craven) 2017 Buy
09 The Greek's Pleasurable Revenge(By: Andie Brock) 2017 Buy
10 The Secret Kept from the Greek(By: Susan Stephens) 2017 Buy
11 Carrying the Spaniard's Child(By: Jennie Lucas) 2017 Buy
12 Kidnapped for the Tycoon's Baby(By: Louise Fuller) 2017 Buy
13 The Greek's Secret Son(By: Julia James) 2018 Buy
14 The Baby the Billionaire Demands(By: Jennie Lucas) 2018 Buy
15 Claiming His Hidden Heir(By: Carol Marinelli) 2018 Buy
16 Demanding His Hidden Heir(By: Jackie Ashenden) 2018 Buy
17 The Secret the Italian Claims(By: Jennie Lucas) 2018 Buy
18 Wed for His Secret Heir(By: Chantelle Shaw) 2018 Buy
19 The Heir the Prince Secures(By: Jennie Lucas) 2018 Buy
20 The Italian's Unexpected Love-Child(By: Miranda Lee) 2018 Buy
21 Married for His One-Night Heir(By: Jennifer Hayward) 2018 Buy
22 The Secret Kept from the Italian(By: Kate Hewitt) 2018 Buy
23 Demanding His Secret Son(By: Louise Fuller) 2019 Buy
24 The Sheikh's Secret Baby(By: Sharon Kendrick) 2019 Buy
25 The Sicilian's Secret Son(By: Angela Bissell) 2019 Buy
26 Claimed for the Sheikh's Shock Son(By: Carol Marinelli) 2019 Buy
27 Shock Heir for the King(By: Clare Connelly) 2019 Buy
28 The Maid's Spanish Secret(By: Dani Collins) 2019 Buy
29 Sheikh's Royal Baby Revelation(By: Annie West) 2019 Buy
30 Cinderella's Scandalous Secret(By: Melanie Milburne) 2019 Buy
31 Unwrapping the Innocent's Secret 2019 Buy
32 Proof of Their One-Night Passion(By: Louise Fuller) 2019 Buy
33 The Italian's Unexpected Baby(By: Kate Hewitt) 2019 Buy

Secret Heirs of Billionaires Books by Publication Order

2015 Unwrapping the Castelli Secret #1
2015 Brunetti's Secret Son/ Christmas at the Chatsfield(By: Maya Blake) #2
2016 The Secret to Marrying Marchesi(By: Amanda Cinelli) #4
2016 Demetriou Demands His Child(By: Kate Hewitt) #5
2016 The Desert King's Secret Heir(By: Annie West) #6
2017 The Sheikh's Secret Son(By: Maggie Cox) #7
2017 The Innocent's Shameful Secret(By: Sara Craven) #8
2017 The Greek's Pleasurable Revenge(By: Andie Brock) #9
2017 The Secret Kept from the Greek(By: Susan Stephens) #10
2017 Carrying the Spaniard's Child(By: Jennie Lucas) #11
2017 Kidnapped for the Tycoon's Baby(By: Louise Fuller) #12
2018 The Greek's Secret Son(By: Julia James) #13
2018 The Baby the Billionaire Demands(By: Jennie Lucas) #14
2018 Claiming His Hidden Heir(By: Carol Marinelli) #15
2018 Demanding His Hidden Heir(By: Jackie Ashenden) #16
2018 The Secret the Italian Claims(By: Jennie Lucas) #17
2018 Wed for His Secret Heir(By: Chantelle Shaw) #18
2018 The Heir the Prince Secures(By: Jennie Lucas) #19
2018 The Italian's Unexpected Love-Child(By: Miranda Lee) #20
2018 Married for His One-Night Heir(By: Jennifer Hayward) #21
2018 The Secret Kept from the Italian(By: Kate Hewitt) #22
2019 Demanding His Secret Son(By: Louise Fuller) #23
2019 The Sheikh's Secret Baby(By: Sharon Kendrick) #24
2019 The Sicilian's Secret Son(By: Angela Bissell) #25
2019 Claimed for the Sheikh's Shock Son(By: Carol Marinelli) #26
2019 Shock Heir for the King(By: Clare Connelly) #27
2019 The Maid's Spanish Secret(By: Dani Collins) #28
2019 Sheikh's Royal Baby Revelation(By: Annie West) #29
2019 Cinderella's Scandalous Secret(By: Melanie Milburne) #30
2019 Unwrapping the Innocent's Secret #31
2019 Proof of Their One-Night Passion(By: Louise Fuller) #32
2019 The Italian's Unexpected Baby(By: Kate Hewitt) #33

Questions readers ask

What is the correct Secret Heirs of Billionaires reading order?

The Secret Heirs of Billionaires reading order on this page follows the numbered series order where available, with publication years shown beside each book.

How many Secret Heirs of Billionaires books are there?

This catalog currently lists 32 Secret Heirs of Billionaires books published across 2015-2019.

Who writes the Secret Heirs of Billionaires books?

Secret Heirs of Billionaires is listed as a book series by Caitlin Crews.

Should I read Secret Heirs of Billionaires in publication order?

For most readers, publication order is the safest way to read Secret Heirs of Billionaires. If a separate series order is available, this page shows that order first and publication years beside each title.

More by Caitlin Crews

Caitlin Crews books in order and complete bibliography ->

Source note: Sequencebooks organizes author, book, and series records from its catalog data. Publication years and series order are shown when available.