Swordhunt (Star Trek, No. 95: Rihannsu, Book 3)" [first edition]

After rescuing Dr. Leonard McCoy from the Romulans and stealing the sword that represented the legendary symbol of Romulan power, pride, and tradition, Ael must stop a war as the the Romulans threaten to engulf the Klingons and the Federation in all-out warfare in order to retrieve their sword. Original.