When he arrives he learns the horrible truth. The original settlers nearly became extinct, succumbing to a plague that (in Smith's words) rendered "femininity carcinogenic." They were only able to save their women by chemically (and later genetically) making them male. However, the resulting society is deeply unbalanced by the lack of females and ordinary family structure. The Arachosians, not truly male or female and calling themselves "klopts", realize on an instinctive level what they are missing and as a result, hate normal human beings with unbridled fervor and regard them as abominations to be destroyed (even though they have not seen one in many generations). To carry out this plan, they have dispatched traps in the form of messages, such as the one Suzdal encountered, throughout the galaxy.