“Book Descriptions: The Tholians are on the warpath, and a looming Borg threat could mean even greater problems for the Enterprise crew.
Michael Jan Friedman's "War And Madness", published in DC Comics' Star Trek: The Next Generation #71-75, brings back not only the xenophobic Tholian Assembly but also the rogue band of former Borg led by Hugh.
William Riker’s father, Kyle Riker, returns to the Enterprise to help the crew sort out tensions with the Tholians—and, hopefully, to finally reconcile with his estranged son.” DRIVE