Dreadnought (Star Trek #29)

Star Empire is the Federation’s most powerful weapon, a dreadnought, the first of a new class of super-starships capable of outgunning a dozen Klingon cruisers. On the eve of her maiden voyage, a band of terrorists steals Star Empire and demands a rendezvous with the EnterpriseTM . Aboard the Enterprise is the young Lieutenant Piper, and soon she must discover why her friends from Starfleet are among the terrorists, and why they insist that the ship was stolen not to attack the Federation, but to save it.