Star Trek: Caveat Emptor

STARFLEET CORPS OF ENGINEERS
CAVEAT EMPTOR
DaiMon Forg of the Ferengi Merchantman thought he was getting a fantastic new computer at a stunningly low price. But he realized too late that the price he paid for the machine from Beta 3 was far too high...
What starts as a simple rescue mission reveals something that astonishes the U.S.S. da Vinci crew -- a ship full of polite, docile, and generous Ferengi! Soon, Commander Gomez and her S.C.E. team realize that the Ferengi have been taken over by Landru, the ancient super-computer, which has returned -- a century after being dismantled by the crew of the Starship Enterprise™ -- to wreak havoc once more.
And Landru has set its sights on the da Vinci next...