The Higher Frontier
The Higher Frontier is a Pocket TOS novel written by Christopher L. Bennett. Published by Gallery Books, it was released in .

Summary 
From the book jacket
Investigating the massacre of a telepathic minority, Captain James T. Kirk and the crew of the U.S.S. Enterprise confront a terrifying new threat: faceless, armored hunters whose extradimensional technology makes them seemingly unstoppable. Kirk must team with the powerful telepath Miranda Jones and the enigmatic Medusans to take on these merciless killers in an epic battle that will reveal the true faces of both enemy and ally!

Background information 
 In a review for Star Trek Magazine issue 203/#76 (Sept 2020), Michael Clark noted the connections The Higher Frontier made between , Commander Thelin from , , and Bennet's previous novels Ex Machina and The Buried Age. (p. 79)
 Author Christopher L. Bennett posted to TrekBBS.com that the cover graphic by Alan Dingman, based on stock images, represents a "Kumari-class cruiser" over Andoria, though no Kumari-type cruisers appear in the story.

Cover gallery

External link 
 

Novels