126 (Footnote) and Lemur 127 (Footnote) , except to note that they did coexist on Earth at more or less the same time. Apparently, both civilizations were founded by remnants of electronic, space opera cultures who fled from their native planetary systems to escape political or religious persecution. The Domain knows that a longstanding edict of the "Old Empire" prohibits unauthorized colonization of planets. Therefore, it is possible that their destruction was caused by police or military forces who pursued the colonists as criminals and destroyed them. Although this seems a likely supposition, no conclusive evidence exists that explains the complete destruction and disappearance of two entire electronic civilizations. Another possibility is that a massive submarine volcanic eruption in the region of Lake Toba, in Sumatra