Tracers (2009–2019) — book series in order

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Untraceable (2009)
Unforgivable (2010)
Unspeakable (2010)
Snapped (2011)
Scorched (2012)
Exposed (2013)
Beyond Limits (2015)
Shadow Fall (2015)
At Close Range (2017)
Touch of Red (2017)
Stone Cold Heart (2019)