"Hyskosa was just the beginning."
Centos was a powerful psychic who worked for Buroden, using his powers to block Toben’s telepathic link. For years, Centos was able to keep the rest of Toben separate from the part of the entity contained in Buroden’s former companion, Tao.
Shortly before the siege of Memory Haven, Centos was attacked in his dreams by a mysterious figure. This began a cycle which eventually led to Centos falling into the hands of the evil Dr Ashcroft who killed the psionic adventurer in a bizarre ritual.
Sometime after his death, Imyel discovered a journal in which Centos described the continued assaults in his dreams.