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"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 omnibus volume contains the entire bestselling saga-by some of Star Trek's most popular authors:  Book One: Infection John Gregory Betancourt  Deanna Troi's life is endangered by a mysterious plague that threatens to spread throughout the Federation and beyond!  Book Two: Vectors Dean Wesley Smith &amp; Kristine Kathryn Rusch  On the Cardassian space station known as Terok Nor, Dr. Katherine Pulaski struggles to heal the planet Bajor!  Book Three: Red Sector Diane Carey  An elderly Dr. McCoy reunites with Ambassador Spock to save the Romulan royal family-and a new generation!  Book Four: Quarantine John Vornholt  Lieutenant Tom Riker joins forces with the outlaw Maquis to rescue a world in peril!  Book Five: Double or Nothing Peter David  Along with Captain Mackenzie Calhoun of the Starship Excalibur, Jean-Luc Picard tracks the deadly contagion to its source!  Book Six: The First Virtue Michael Jan Friedman &amp; Christie Golden  Years before commanding the U.S.S. Enterprise\u0099, a young Picard must prevent a war -- and witness the secret origin of a diabolical threat that would someday menace all he cares for!"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.simonandschuster.com/books/Double-Helix-Omnibus/Peter-David/Star-Trek/9780743473934>