The Final Six Days  Book 1

No memory. No identity. Six days to live.

A man wakes up in the desert outside of Las Vegas on December 26th, sometime in the future, where everything around him feels strange and foreign. He soon learns that a civilization-busting asteroid is about to crash into Las Vegas in six days. After wandering aimlessly in the dystopian final days with Cassie, a young attractive woman who has a fetish for helping lost souls, they spend their final moments together before being incinerated by the crashing fireball. But instead of dying, he awakes in the same location as before, discovering that he is living the same six days over and over. With the help of a mysterious former NASA scientist, he formulates a plan to save himself and Cassie by taking shelter in one of the government's top secret underground survival installations. But along the way, he uncovers clues that suggest not all is what it seems, and through introspection, he wonders if he is meant for a greater purpose.

Coming in Summer 2020 An all new version of the The Final Six Days remixed and refined.

★★★★★ (Readers' Favorite 5 Star Seal)
This book draws you in and gets you interested in each of the characters and just what might happen next, whether they're able to save the world or not in The Final Six Days by Joe Agster. - Samantha Dewitt (Rivera), Readers' Favorite

★★★★★ An awesome read for anyone who is a fan of science fiction, time travel, and apocalyptic futures, and a few tablespoons of love mixed in. - Samantha, reader (Verified Purchase)

★★★★★ The Final Six Days for me was thrilling, captivating and addictive right from the start and I felt this from beginning to end. - Aimee Ann, Red Headed Book Lover Blog

Buy The Final Six Days, Book 1 of the Time Crossers series, for Kindle today!

The Paradox Guardian  Book 2

To save his world, he must cross through time.

(Warning: Possible spoilers if you have not read The Final Six Days)

Guardian Weston Hale has succeeded where everyone, including his own father, has failed. But while the post-asteroid timeline has now been opened up for exploration, he must confront the possibility that his utopian society is in danger. He is summoned to a secret meeting with the Grand Council, the leaders of Sihia who communicate with the Core, the all-powerful machine that controls their world and protects its citizens. They send him on a quest back through time to find evidence the Singularity, a theoretical super-event that will unite humans, technology, and nature, and usher in an eternity of enlightenment on Earth. But as he traverses the post-asteroid world searching for clues with the help of Cassie and Mason, he soon discovers a mysterious force sabotaging his efforts, causing him to question his purpuse, his own existence, even reality itself.

Coming Soon

About Me

Hello, my name is Joe Agster, author of the Time Crossers series. Besides writing, I am a software engineer, husband and father of four, Christian, football and soccer coach, Cubs fan, avid hiker, wannabe bodybuilder, fantasy football guru, beer connoisseur, and cookie chef. I believe that love must be central to all that we do, and that as humans we may disagree, but we should have empathy and compassion for each other. These beliefs oftentimes bleed into my writing.

If you want to contact me for any reason whatsoever, please follow the series on Facebook, Medium, or Goodreads using the links below. You can also email me at