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The Doctor learned that Adams was part of the Council of Eight's plan to control the universe. Kalicum, a member of the Council, altered the DNA of D'Amantine, one of Adam's ancestors. Thirteen generations later, Adams was able to host the alien essence Kalicum had infused in some diamonds kept by Chloe. Kalicum was going to implant them in Adams, seal him in a dwarfstar container and send it back in time before Event One. After the universe began, the essence would became part of the fabric of reality, allowing the Council to manipulate the universe as they wished.