Who's Guarding the Arch? Cryptic Council Clues

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Across
  1. 4. The formal honorific title given to the Master of a Council.
  2. 9. The second half of the Council's degree structure (___ Master).
  3. 11. The officer who guards the Council door from the inside.
  4. 12. There are nine of these subterranean structures in the Secret Vault.
  5. 13. How members of the Cryptic Council formally address one another.
Down
  1. 1. The first half of the Council's degree structure (___ Master).
  2. 2. An underground vault or chamber that gives this branch of Masonry its name.
  3. 3. The specific arch where the sacred treasures were safely deposited.
  4. 5. Paired often with secrecy; a fundamental lesson of the Select Master degree.
  5. 6. A core virtue of the Cryptic Rite, emphasized by the preservation of the word.
  6. 7. It is often described as "broken" in Cryptic symbolism until the work is complete.
  7. 8. The Council officer tasked with leading candidates through the arches.
  8. 10. The secret underground room built beneath Mount Moriah.