What is the Apple of Eden in Assassin's Creed?

Related questions

1. Where do all the Assassin's Creed take place?
2. Is Unreal Engine 4 free?
3. Do you need an Internet connection to play Assassin's Creed Odyssey?
4. Are all Assassin Creed games connected?
5. How many Assassin Creed games are there in total?
6. Do you need Xbox Live to play Assassin's Creed origins?
7. Is Ezio related to Edward?
8. Who killed Edward Kenway?
9. How much did Ubisoft donate to Notre Dame?
10. Will there be an Assassin's Creed 5?

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7. #intelligent
8. #assassin
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11. #artifact
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13. #highly
14. #human
15. #apple
16. #accurately