===[[6.16 ...And Then There Were None]]===
A new creature is created by [[Eve]]. Dean and Bobby both refer to it as the [[Khan Worm]] because it is reminiscent of the [http://memory-alpha.org/wiki/Ceti_eel Ceti eel] from the Star Trek movie [http://www.imdb.com/title/tt0084726/ The Wrath
Of Khan] which after entering through the ear, wrapped itself around a person's brain stem making them susceptible to suggestion, and eventually causing madness. It was referenced also in the [http://www.imdb.com/title/tt0796366/ reboot Star Trek movie] in the form of the [http://memory-alpha.org/wiki/Centaurian_slug Centaurian slug] which also entered through the ear canal and made people speak the truth.