Little is known about these lesser Horrors. Apparently, each ketzser takes the form of a specific Name-Giver, and possesses that creature’s knowledge and skills. They look completely normal with the exception of a long, flexible stinger which they use as a weapon; it normally grows from the creature’s upper arm, though some reports say it may grow from the hip area instead. Ketzsers apparently kill their victims, drain some of their blood using this stinger, and then detach the stinger and plant it in some remote location; the stinger then grows into another ketzser which is an exact duplicate of the victim and knows whatever that individual knew at the time of his death. This growth process is believed to take several weeks. Ketzsers seem to know whatever their “brothers” know, though the exact details of this are unclear.
Other than physically searching someone to find the stinger, ketzsers can only be identified by their auras, which seem slightly too large for their bodies.
There are some vague references to ketzsers as the ‘seeds’ of some sort of parent creature, but these are extrapolated from ancient legends and maddeningly unclear.