The Formidable Mage

by Whiskey Flowers

John Thunder has finally enacted his long-awaited, cold-blooded revenge on David Steele, the former Knight Commander who betrayed him and participated in the murder of his parents. This act of vengeance rips open old wounds across the kingdoms. In Kirby, King Jordan is certain of John's guilt and confronts him in a tense meeting, but he is powerless to strike back without reigniting a devastating war. The personal stakes escalate when John discovers his late father’s hidden journals, which reveal that Jonathan Thunder was a secret assassin who systematically killed high-ranking nobles, including the current King of Kirby's father. This treasonous legacy forces John to expose the explosive truth and plunge the realm into chaos, or protect the fragile peace he fought to create.

310 pages, Kindle Edition

Published February 14, 2026

About the author

I know a bunch of you have been asking exactly you the heck I am. First off, my name is Whiskey Flowers, I was active duty army and now I am a proud member of the New Mexico National Guard. In my day job, I am a corrections officer, I watch the best and brightest Albuquerque has to offer and make little money doing it. I am originally from Oakland, California, home of dumbasses and knuckleheads everywhere where I attempted to become their leader until the army put me on a different path. As many of you have pointed out, I never got my high school diploma, I am a GED student but I make it look good. If any of you are ever in New Mexico and want a drinking partner, I got you.

Reviews

[Alan Carter · Rating 5 out of 5]

John thunder ends

Sad to see the end of an era with John Thunder
Terrified to hear we nearly lost you Whiskey didn’t know they were messing with your brain.
Glad to see they didn’t remove any of the storytelling ability.
Hope the next op goes well and all the best for the future
I hope you continue to crank out cracking stories like this book, (no pressure there then), but do look after yourself.
All the very best for the future
Alan UK

[Romanticfae · Rating 5 out of 5]

an end for the John thunder books

A satisfying end to a series loose ends are tied and the characters can move on. I’m very happy to read this mr flowers is maybe not the best with a ending but this feels good
I’m also so glad to hear that he is doing better and wish him the best and fast recovery for his next surgery.

[Kerrie P · Rating 5 out of 5]

Stayed up all night

I have been anxiously waiting for any book from Whiskey Flowers and this book did not disappoint. I just wanted to read a few chapters, then I realized it was 4 am and I have to work in the morning. This book was the completion the Thunders deserved. Characters show growth change. I don't want to spoil anything but this is a must read book.

[cheryl price · Rating 5 out of 5]

I have followed this series from the very beginning I immensely enjoyed it. Sorry to see the end. Also I really enjoyed all of your books.
I will pray your surgery goes well
I do miss your not writing for frequently. But I understand things happen in our lives, Putting bumps in our road of life.

[Doreen Brady · Rating 4 out of 5]

Good Ending

I've enjoyed the whole Thunder series and would recommend you give it a try. If you like magic, drama, and strong male characters from humble backgrounds this series is for you.

[Michael Burnett · Rating 5 out of 5]

Great book

Great book I can't wait to read the next book in the series I would recommend this author to anyone

[Deamon McAdams · Rating 5 out of 5]

Love this author

I've read all of this series and most of everything by whiskey flowers. I really hope he keeps writing in this universe it's wildly entertaining.

[Jim Phillips · Rating 4 out of 5]

End of an era

Nice conclusion to the series. Much improved craft from the first book. Epilogue is absolutely the best thing about this book.

[Mary K Shanor · Rating 5 out of 5]

good end to a great series

Sad to have the potential end to this series. A good read and and ending of this portion. Looking forward to more books.

[Paul I · Rating 5 out of 5]

Nice

I reel like it i thank i end well out stand work you did heel of job I hope all go well for you