The inhabitants of Tleilax, lone planet of the star Thalim, a source of unmoral although tolerated, technological products fol lowing the Butlenan Jihad As such the enigmatic Tleilaxu posed a potential threat to the delicate technological prohibitions of the feudal Impermm However, the Tledaxu dealt in more than simple machine products They also produced genetically engineered humans for specific purposes If any people should have been purged by the Jihad, it was the Bene Tleilax, whose technology recognized no restraints in pur suit of their scientific interests The fact that the Great Revolt missed this isolated world stands in ironic contrast to the otherwise energetic thoroughness of the Jihad Indeed the Tleilaxu existed m a moral and ethical vacuum on the extreme periphery of the known universe Initial scientific inquiry and insatiable curiosity expressed themselves in this void by Tleilaxu self experimentation, a practice encouraged by the ample supply of lower-class subjects in their highly stratified society This fundamental disposition endured through the ensuing millennia 490 When they were discovered by an early Spacing Guild reconnaissance ship m 23 B G , the science and technology of Thalim could no longer enjoy concealment However, the Tleilaxu were able to persuade the Guild to purvey their products to the newly formed Impenum Later, they were further protected from punishment under the edicts of the Great Convention when their security was guaranteed by both the Guild and House Comno, and their products were welcomed by the less fanatical majority of the Impenum The amoral and morally debilitating fecundity of the Tleilaxu, who defined everything as either tool or product, was unleashed on a nubility that had grown desensitized by time to the psychological and ethical monstrosities that necessitated the Butlenan Jihad The history of ancient Tleilax is undocumented Located in the eleventh sector of the old Impenum, the planet has always been difficult to reach Even the Guild, which discovered Tleilax, can provide little information on its past The Bene Gessent Library on Wallach DC is also not helpful Once aware of the Beae Tleilax as a rival in mental and physical training, die Sisterhood set its spy network in motion too late to discover any significant information The Tleilaxu were wise to have negotiated their pledges of security For a tune, these pledges were mutually beneficial the Tleilaxu knew they were safe, and House Comno and the Spac