Like a strand of mutating DNA, a deadly conspiracy winds its way through the Alpha Quadrant, even as it stretches across several years of Starfleet history. This special volume contains the entire bestselling saga - by some of Star Trek's most popular authors. Infection by John Gregory Betancourt Deanna Troi's life is endangered by a mysterious plague that threatens to spread throughout the Federation and beyond! Vectors by Dean Wesley Smith and Kristine Kathryn Rusch On the Cardassian space station known as Terok Nor, Dr. Katherine Pulaski struggles to heal the planet Bajor!