The Ultra-Thriller series is a detective/action fiction series published between August 1992 and June 1993 by Archway Paperbacks (an imprint of Simon & Schuster). It was a spin-off of The Hardy Boys Casefiles and the Tom Swift IV series and joined boy inventor Tom Swift with the crime solving Hardy boys, Frank & Joe. Although The Hardy Boys pseudonym, Franklin W. Dixon was used, this series was more akin to the Tom Swift IV series by Victor Appleton.
...Brutal, Unflinching Tech-Driven Thriller ... “It’s weird to talk about the warm fuzzies when you’re discussing an ultra-violent thriller, but it is what it is.” — OutlawPoet.