In Atlantis, 13 crystal skulls contained the consciousness, knowledge, and wisdom of everything since the beginning of humanoid forms on Earth, over 250,000 years ago. This information included the Divine Blueprint of humanity, humanity’s origin, purpose, destiny, and spiritual knowledge that can save the planet today. Twelve skulls each hold the consciousness of one of the twelve tribes, while the thirteenth skull, a Master Crystal stored the knowledge of all twelve tribes, and was transported to the sixth dimension, the Halls of Amenti during the fall of Atlantis.
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See Crystal Skulls, Fall of Atlantis.