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Z-67: Difference between revisions
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'''Z-67''' | '''Z-67''', also known as '''Sullivan's gas''', was a [[nerve gas]] that unravelled the [[DNA]] of [[Zygon]]s, essentially turning them inside-out. If released it would create a chain reaction in the atmosphere, such as that a single use would kill all Zygons on an entire planet. | ||
Z-67 was developed by [[UNIT]] naval surgeon [[Harry Sullivan]] at [[Porton Down]], working on Zygon prisoners captured from their attempted invasion in the later [[20th century]]. [[The Doctor]], who called Sullivan an "imbecile" for creating it, confiscated the gas and the formula from UNIT. | |||
The red [[Osgood Box]] supposedly contained Z-67 that would be released if the humans chose the "winning" button. However, this was a feint by the [[Twelfth Doctor]] and the box was empty. ([[TV]]: ''[[The Zygon Invasion (TV story)|The Zygon Invasion]]'', ''[[The Zygon Inversion (TV story)|The Zygon Inversion]]'') | |||
[[cy:Z-67]] | [[cy:Z-67]] | ||
[[Category:Bioweapons]] | [[Category:Bioweapons]] | ||
