Breakthrough is a series of 6 books written by Michael C Grumley. Here, you can see them all in order! (plus the year each book was published)
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Michael C Grumley2013
Michael C Grumley2014
Michael C Grumley2015
Michael C Grumley2017
Michael C Grumley2019
Michael C Grumley2021
6 books in this series
The author is Michael C Grumley.
There are 6 books in the Breakthrough series.
The first book was written in 2013, and the last book was written in 2021 (we also added the publication year of each book right above the "View on Amazon" button).