Reading Order List — Book Series Reading Order Guide

Diana Cosby Reading Order

4 series · 15 books

FantasyMystery & ThrillerRomance

Diana Cosby is a retired Navy Chief whose military background infuses authentic detail into her paranormal romance and romantic suspense novels. Her works, including the MacGruder Brothers series and the Forbidden series, blend fantasy elements with mystery and thriller components across multiple interconnected stories. With fifteen books published between 2007 and 2020, Cosby crafts emotionally complex narratives that appeal to readers seeking romance grounded in compelling world-building and suspenseful plots.

Anthologies Series

Complete

1 book (2012–2012)

#Title
1
Cover of Born To Bite
Born To Bite
2012Buy 🇺🇸🎧 Audible

Forbidden Series

Complete

5 books (2016–2020)

Start with Forbidden Legacy, the first of 5 books in the Forbidden series.

Start this series with Forbidden Legacy

Buy Book 1 🇺🇸🎧 Listen free on Audible
#Title
1
Forbidden Legacy
2016Buy 🇺🇸🎧 Audible
2
Cover of Forbidden Knight
Forbidden Knight
2017Buy 🇺🇸🎧 Audible
3
Cover of Forbidden Vow
Forbidden Vow
2018Buy 🇺🇸🎧 Audible
4
Cover of Forbidden Alliance
Forbidden Alliance
2019Buy 🇺🇸🎧 Audible
5
Cover of Forbidden Realm
Forbidden Realm
2020Buy 🇺🇸🎧 Audible

MacGruder Brothers Series

Complete

6 books (2007–2013)

Start with His Captive, the first of 6 books in the MacGruder Brothers series.

Start this series with His Captive

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#Title
1
Cover of His Captive
2
Cover of His Woman
3
His Conquest
2010Buy 🇺🇸🎧 Audible
4
Cover of His Destiny
5
Cover of His Enchantment
His Enchantment
2013Buy 🇺🇸🎧 Audible
6
Cover of His Seduction
His Seduction
2013Buy 🇺🇸🎧 Audible

Oath Trilogy Series

Complete

3 books (2014–2015)

Start with An Oath Taken and read in order.

Start this series with An Oath Taken

Buy Book 1 🇺🇸🎧 Listen free on Audible
#Title
1
Cover of An Oath Taken
An Oath Taken
2014Buy 🇺🇸🎧 Audible
2
Cover of An Oath Broken
An Oath Broken
2015Buy 🇺🇸🎧 Audible
3
Cover of An Oath Sworn
An Oath Sworn
2015Buy 🇺🇸🎧 Audible

Frequently Asked Questions

How many books has Diana Cosby written?
Diana Cosby has written 15 books across 4 series. Their published works span from 2007 to 2020.
What is the first book in each Diana Cosby series?
Here are the first books in Diana Cosby's series: Forbidden: Forbidden Legacy; MacGruder Brothers: His Captive; Oath Trilogy: An Oath Taken.
What order should I read Diana Cosby's books?
We recommend reading Diana Cosby's series in publication order. Each series can be read independently.
Are Diana Cosby's series complete?
Diana Cosby has 4 completed series.

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