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192 pages, Paperback

First published January 1, 1986

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Flint Dille

53 books12 followers

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5 stars
6 (22%)
4 stars
5 (18%)
3 stars
12 (44%)
2 stars
4 (14%)
1 star
0 (0%)
Displaying 1 - 7 of 7 reviews
Profile Image for Craig.
6,796 reviews193 followers
February 12, 2026
This was the first book in a series of three novels written in the pulp style and tradition and set in the late 1930s. They later did sequential art versions, too. It was published by TSR, but I don't think it was based on a specific game but was a part of something called the TSR Top Secret/SI setting. The story was over the top in throwing in every pulp trope they could think of, spies and Nazis and secret societies and ancient knowledge and lost civilizations, etc. The main character is not named; he's just Agent 13. It was fun until the end, where instead of an ending they just had a page with a list of some of the questions that had gone unanswered and a directive to buy book #2, which I decided against. I did really like the Jeff Butler cover art, though.
55 reviews
January 19, 2025
Flint Dille’s first book in the trilogy about Agent 13, a pulp hero and one man army continuing his lifelong war against his arch nemesis, the evil Brotherhood. If you enjoy the pulps along the lines of Doc Savage, The Spider, and The Shadow, you will get a kick out of The Invisible Empire. Can’t wait to read the second book in the series.
Profile Image for Mark Adkins.
850 reviews7 followers
May 23, 2022
This was an extremely silly book that I still enjoyed. It is written in the style of a 1930 pulp fiction novel and not surprisingly set in that time frame.

It did interest me enough to maybe look for the next book in the series to see what happens next.
Profile Image for Janet Redhead Tree Frog.
71 reviews
December 14, 2024
This is not my typical read but found it in a box of my dad's books and thought I'd give it a go.
I don't actually know how I feel about it. Throughout the read I was like, "Is this really stupid or is it awesome?" I really can't decide so I'm going to lean towards "awesome."

It does kind of remind me of Saturday morning cartoons (Justice League, Johnny Quest) or my imagination of old radio programs for kids. The Rocketeer or Sky Captain and the World of Tomorrow.. It's got that feel to it.

It was entertaining.
Profile Image for Little Timmy.
7,795 reviews66 followers
July 31, 2014
Impressive modern writing of a pulp style character. This is the 1st book of Agent 13 a man against the world. He has left the secretive organization called the brotherhood to fight against their world dominating plans. Using skills he learned while being trained as their assassin he travels the world battling their plans. Very recommended.
Profile Image for Chad.
60 reviews8 followers
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June 15, 2014
Great Pulp at its Finest!

This book had it all when it comes to old pulps. Thugs, Nazis, lightning guns, beautiful women, a femme fatale, gangsters, and the mysterious Agent 13.
Displaying 1 - 7 of 7 reviews