Threshold is a 6-book series with 4 primary works first released in 2012 with contributions by Christa Kinde and Peter Clines.
2013 • 1 Reader
2012 • 170 Readers • 469 pages • 3.9
2015 • 175 Readers • 384 pages • 3.7
Dead Moon
2019 • 30 Readers • 400 pages • 3.7
Angels in Harmony
2014 • 36 Readers • 4
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