Comments in bold, Geogia, black font (like so). So, probably a Po-Matoran, since he can carve, strengthening the Velika argument. Almost any literate Matoran was able to carve; it's how they wrote. "Baleful eyes" seem like a pretty good hint, also helping the Velika argument, since I guess Matoran, especially with certain masks, have "baleful eyes." You do know that "baleful" means "menacing," right? Greg isn't making any physical comments here--it's a statement that this guy is up to no good. Po-Matoran have a "rock sense" that helps them find weak points, like in Tales of the Mask: Or at least Pohatu had it. It seems like Velika is the best argument, but it doesn't matter much since it's already guessed. Being able to travel at the speed of light would allow him to always be in the tunnel when needed, yes. Overall, I do think you make a pretty convincing case for Umbra being the Great Being. It could also work toward explaining how he has such strong, unique light powers.~B~The only question is as to how he would know when to return to the cave. I really don't want to think that Umbra spent 100% of his time in the cave, but it's a little shaky as to how he wouldn't. @3: The Nuva didn't really have any memories of their time prior to arriving on the Island of Mata Nui until people helped them jog their subconscious, so their remembering being a GB is almost completely impossible given the "no total memory loss" rule.@4: It's been defined. Seriously, though, Greg probably isn't going to go crazy with some explanation like "on Spherus Magna and in the MU, 'observing' means 'being a Toa'" () or otherwise create a new definition. He gave us a challenge, so he naturally isn't going to complicate it to remove the possibility to rational thought and thus success. He had so assume that we knew what his definition of "observe" was, so I don't think it differs from the average one. Further, observing the MU means exactly that: observing the universe, not just a portion of it. It shouldn't--I agree with you there--but it does, as mentioned by Greg to Nuhrii the Metruan [source].~ BioGio