in the following week, kirop, the leader of the av-matoran, became corrupted, along with many others. even radiak, hero of the av-matoran, succumbed to the attack of the enemies, who kirop revealed to be members of the brotherhood of makuta before his corruption. all of the av-matoran villages fell save one, where the remaining uncorrupted matoran were sheltering at the time of mata nui's death.