Maximum Force

Grant Valor #2

by Jack Mars

In MAXIMUM FORCE (Book #2), when an elusive terrorist cell commandeers cutting-edge military tech for heists across Europe, Grant Valor and the elite team must thwart their plans to seize a nuclear vehicle. Valor's chase leads them through a labyrinth of high-speed pursuits and clandestine warfare, where every corner turned could lead to global catastrophe.

Genres: Mystery, Amazon

163 pages, Kindle Edition

Published August 11, 2025

About the author

Jack Mars is author of the bestselling LUKE STONE thriller series, which include the suspense thrillers ANY MEANS NECESSARY (book #1), OATH OF OFFICE (book #2) and SITUATION ROOM (book #3).

Reviews

[Beach Bum · Rating 3 out of 5]

Misalignment of concepts

The overall concept is good, however so many of the minor concepts of the Sentinel organisation fail to align to the overall storyline e.g. Sentinel have high tech stuff, yet this time round the baddies have higher tech stuff that they steal from Sentinel allies. If the allies have it, why don't Sentinel
Get past that bit and the trauma William has to try and overcome to complete the mission, is the predominant aspect of the team that is bright to the fore this time round. Last time it was David, so next book will be one of the other 3?
To be honest, the team seem to struggle through, whilst making more mistakes than the opponents, a Calamity of errors with a winning hail Mary at the end

[Lewis D. · Rating 2 out of 5]

I read the first Valor book and thought I would give 2nd one a try, my mistake.
You have a billion dollar organization that is sponsored by several governments and has latest technology but only 5 operatives.
It appears that that all governments especially military are totally inept. We cannot ask them for assistance and when we do, they cannot arrive in time.
The battles are overdone when everyone(4-5operators) is injured but still operate at 100%.
I am done with ALL Jack Mars since it appears that he's only interested in pumping out series after series on a approximately monthly basis.

[Jeff Benton · Rating 5 out of 5]

Another win for Sentinel

Another excellent story in the continuing Saga of the Sentinel team. I can hardly wait for the next installment! I relish the team getting more more accustomed to each other in the future.

[Christine Doron · Rating 4 out of 5]

Action Heroes

If you like fast paced action and adventure, you will love this book. And if you are fans of David Baldacci, Patterson or Clancy the international suspense will feed your tangle-loving mind.

[patricia sendelbach · Rating 4 out of 5]

Each member is an outlier for one reason or another. Doubt from one team member creates additional tension.