40:5.12

Series two—mortals of the non-Adjuster-fusion types. These are specialized types of human beings who are not able to effect eternal union with their indwelling Adjusters. Type classification among the one, two, and three-brained races is not a factor in Adjuster fusion; all such mortals are akin, but these non-Adjuster-fusion types are a wholly different and markedly modified order of will creatures. Many of the nonbreathers belong to this series, and there are numerous other groups who do not ordinarily fuse with Adjusters.