Again, it cannot be Mavrah. He's still in the Red Star with Kopaka and Pohatu. You maybe right, and Pirok I highly doubt Greg doesn't know who the murderer is. But we never thought Metus was the traitor, or that Makuta would suceed in taking over the Matoran Universe. Greg has always surprised us. So... It narrows it down to: -A matoran-Takadox-A matoran universe inhabbitant-Can't be a toa cause matoran were made before the toa, so it any matoran-A weak being But a friend of mine, iHuntress, from the BIONICLE LEGO MESSAGE BOARDS, says she knows who the great being is! She says that character was in the last two chapter books... Really. The last two were...Raid on Vulcanus and The Final Battle. No one from raid on Vulcanus, they are all Spherus Magna Inhabitants... but The final battle.... What name comes up that isn't Dq'd Nuva-NopeTaka-NopeIgnika/Mata Nui-NopeThe Makuta-All DeadAvtoran/Vican-SuspectsDume- And I think we can say it is him. -Star Which is all very interesting, but this is the TPTB topic. I suggest someone makes a topic for The Yesterday Quest.