Derek Benz (born Oct 27, 1971, Van Meter, Iowa) is an American author of fantasy fiction for children and co-author of the popular Grey Griffins, originally published by Scholastic, Inc. Benz works in collaboration with J. S. Lewis on the series.
Benz currently resides on the Gulf Coast with his family.
- Grey Griffins Book One: The Revenge of the Shadow King (March 2006)
- Grey Griffins Book Two: The Rise of the Black Wolf (December 2006)
- Grey Griffins Book Three: The Fall of the Templar (January 2008 or December 2007)
- Grey Griffins - Clockwork Chronicles:The Brimstone Key (Spring 2010)
- Grey Griffins - Clockwork Chronicles:The Relic Hunters (May 2011)
- Grey Griffins - Clockwork Chronicles:The Paragon Prison (July 2012)
- Grey Griffins - A Grey Griffin Companion (July 2013)