Aaron Rosenberg 
Star Trek: Collective Hindsight Book 2 [EPUB ebook] 

During the Dominion War, Commander Salek and Lt. Commander Duffy of the S.C.E. dealt with a runaway vessel that was endangering a star system — a mission from which Salek did not return. Now, a year later, Salek’s and Duffy’s replacements — Commander Gomez and Lt. Commander Tev — are faced with the same runaway ship. Facing more than one ghost from the past, can Gomez and Tev succeed where their predecessors failed?