Clue: Biblical artifact ostensibly hidden in the Well of Souls

Answer: ARK

Length: 3

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Similar Clues:

• Religious artifact supposedly hidden in the Well of Souls (ARK with 3 letters)
• HBO's "Inside the __" (and hidden theme in this puzzle's four longest answers) (NFL with 3 letters)
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• They're hidden in this puzzle's theme entries (CEREALS with 7 letters)
• Structure of this puzzle's theme, hidden in five answers (DOUBLEHELIX with 11 letters)
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