Elder Kree'nag was a leader of the Zamorakian Dagon'hai cult prior to their exile from Varrock in the Year 70 of the Fifth Age. He was killed, alongside the rest of the cult's elders, when they were forced from Varrock.
The death of Kree'nag and the rest of the elders would later open the position for Sin'keth Magis, the father of the Dagon'hai's current leader, Surok Magis.