As part of PAX's research, a sample of creep was brought to the facility by the zealots Akam, Golarath and Ruom, who were also assigned to guard the facility in the event of an accident. As it was, an accident did occur, Golarath and Ruom went to extract a tissue sample. As it grew, Golarath began disfiguring himself, eventually falling to his own psi-blades, while Ruom fell into catatonia, his mind unreadable. Along with Akam, Jhas helped him to an isolation unit.
Things became worse as a chain reaction ripped through PAX, destroying its stargate and thus cutting it off from the rest of protoss civilization. Akam suspected sabotage, while the rest of the scientists sensed great anguish in the thoughts of the scientist Wa'Rak. They found him in his quarters, having committed suicide in a manner similar to Golarath. To make matters worse, Ruom reappeared, having become "infested", decapitating Akam. Jhas realized that the creep had evolved, developing abilities that allowed the infestation of protoss, despite the protection the Khala usually provided for them. Drawing out a knife, he attacked Ruom, declaring him to be an abomination and that all protoss were in peril. However, his attack was ineffective and Ruom countered his attack, crushing Jhas' skull.