James P. Sumner books

James P. Sumner is a British action thriller author best known for the Adrian Hell assassin series. He has written 21 books across five series, published between 2014 and 2023.

Adrian Hell Reading Order

Title Published Buy on Amazon
Crucible 2014 N/A
True Conviction / Crucible 2014 Buy
Hunter’s Games 2014 Buy
One Last Bullet 2014 Buy
Deadly Intent 2015 Buy
A Hero of War 2015 Buy
A Necessary Kill 2016 Buy
Good Intentions 2016 Buy
Thicker Than Blood 2017 Buy
Blowback 2020 Buy
The Devil You Know 2021 Buy
Five Rounds 2022 Buy
Become Death 2022 Buy

GlobaTech Reading Order

Title Published Buy on Amazon
D.E.A.D. Till I Die 2015 Buy
Crossfire 2018 Buy
Danger Close 2021 Buy
Cry Havoc 2022 Buy

Roach Reading Order

Title Published Buy on Amazon
Hard To Kill 2021 Buy
Time To Die 2023 Buy

Thrillerverse Events

Title Published Buy on Amazon
Critical Strike 2021 Buy

Warlock Prophecies

Title Published Buy on Amazon
Lost Souls 2018 Buy

James P. Sumner is a British author who writes action thrillers packed with gunfights, covert operations, and relentless pacing. His flagship creation is Adrian Hell, a former assassin whose 13-book series has built a loyal following among readers who enjoy nonstop action. Sumner has also written the GlobaTech series, which expands on the same fictional universe with stories centered on a powerful tech corporation and its shadowy dealings.

Beyond Adrian Hell and GlobaTech, Sumner has written the Roach series, the standalone Thrillerverse Events entry Critical Strike, and the Warlock Prophecies book Lost Souls. All of his series share a connected world that he calls the “Thrillerverse,” letting characters and storylines cross over between books. His writing career began in 2014, and he has published 21 books through 2023.

Frequently Asked Questions

How many books has James P. Sumner written?

James P. Sumner has written 21 books across five series.

What was James P. Sumner's first book?

James P. Sumner’s first book is Crucible, published in 2014.

What is the Adrian Hell series about?

The Adrian Hell series follows a former assassin who gets pulled back into dangerous missions. The series spans 13 books and includes fast-paced action with themes of loyalty, betrayal, and survival.

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