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Michael C. Grumley

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Books by Michael C. Grumley

Mosaic (Breakthrough #5) - Michael C. Grumley

Read by Unknown

4.67,820 reviews
(2019)Sci-Fi

Ripple (Breakthrough #4) - Michael C. Grumley

4.5
(2016)Sci-Fi

Catalyst: Breakthrough, Book 3 - Michael C. Grumley

Read by Scott Brick

4.411,442 reviews
(2015)Sci-Fi

The Last Monument - Michael C. Grumley

4.1
(2020)Suspense

Amid the Shadows - Michael C. Grumley

4.0
(2013)Paranormal

Through the Fog - Michael C. Grumley

Read by Unknown

3.97,183 reviews
(2014)Thriller

Breakthrough Series, Books 1-2 - Michael C. Grumley

Read by Scott Brick

Military

Echo Breakthrough Book 6 - Michael C. Grumley

Sci-Fi