[@mattmanganon] For what it’s worth (which probably isn’t a lot), but I got to side with [@RumikoOhara] on this one. Lantern Rings are one of the most powerful weapons in the Universe, and each Lantern Corp keeps pretty close tabs on them. Making it almost impossible for a full set to be on earth, and not be known to the other Green Lanterns (Hal, Guy and John).