Introduction (blurb)Edit

From the back cover: Like a strand of mutating DNA, a deadly conspiracy winds its way through the entire Alpha Quadrant, just as it stretches across several years of Starfleet history -- even to the Cardassian space station that will someday be known as Deep Space Nine.

A virulent plague has stricken Terok Nor, striking down both the enslaved Bajorans and their Cardassian oppressors, who blame each other for the growing epidemic. Dr. Katherine Pulaski, late of the Starship Enterprise, must work with the tyrannical Gul Dukat, as well as a rebel spy named Kira Nerys, to discover the true source of the infection that threatens them all!



Cadema HyleChamarCordaBeverly CrusherWesley CrusherDataDukatFicen DobatGel KynledThe GeneralEdgar GovernoJaviKellec TonKira NerysGeordi La ForgeLinitCrystal MarvigNaratNogOdoAlyssa OgawaJean-Luc PicardKatherine PulaskiQuarkRashanWill RikerRomUSS Enterprise-D personnel (unnamed USS Enterprise-D personnel)
Referenced only 
Arthur Conan DoyleSherlock HolmesIshkaPrinadoraShakaar EdonDeanna Troi


BajorDeep Space 5PromenadeQuark'sTerok Nor
Referenced only 
Archaria IIICardassiaFerenginarVulcan

Starships and vehiclesEdit

USS Enterprise-D (Galaxy-class)

Races and culturesEdit

Referenced only 

States and organizationsEdit

Bajoran ResistanceCardassian Central CommandCardassian UnionObsidian OrderStarfleetStarfleet MedicalUnited Federation of Planets

Science and technologyEdit

Archaria virusbiobedBlack plaguecommunicatorholodeckholosuitehyposprayNausicaan wort virusorbitphaser pistolprionquarantine fieldTriferian fluuridium

Ranks and titlesEdit

dabo girldoctorgul

Other referencesEdit

bloodwinecoffeedaboDivine TreasuryearbrushEarl GreyFerengi Rules of AcquisitionGamzian wineItharian moléJibetian beerlatinummarriage contractmartiniMoba fruit juiceMoogienapkinrokassa juiceRomulan aleSaurian brandySherlock Holmes Program 3Ateatube grubVisscus vodkavodka

See alsoEdit



  • The Double Helix series was a Next Generation storyline that featured each installment crossing over with another franchise series. Vectors in particular crossed TNG with Star Trek: Deep Space Nine.



published order
Previous novel:
TNG numbered novels Next novel:
Red Sector
chronological order
Previous Adventure:
Shades of Gray
Pocket Next Adventure:
Life's Work

External linkEdit

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