The Soldiers Of Fear

Long ago, before the dawn of civilization, they were banished to the realm of nightmares. Now the terrors are real... A generation ago, another Starship Enterprise TM fought off a ship of exiled aliens intent on conquering all of the Alpha Quadrant. Starfleet thought the foe had been repelled forever—until now. The Furies have returned in might warships even more powerful than before. But their weapons are more than merely physical, for these aliens are the origins of all the demons and monsters