Black Knights Inc. (2012–2018) — book series in order

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Hell on Wheels (2012)
In Rides Trouble (2012)
Rev It Up (2012)
Thrill Ride (2013)
Full Throttle (2014)
Hell for Leather (2014)
Too Hard to Handle (2015)
Fuel for Fire (2017)
Wild Ride (2017)
Built to Last (2018)