Moderate difficulty suitable for most players
Cryptic Passages Beneath the Earth
Challenging puzzle for experienced crossword solvers
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Across
- 1. Ventilation slats, essential for subterranean air circulation
- 2. French term hinting at snails, but here alluding to tight spiraled underground routes
- 3. Ancient burial labyrinths carved under Roman soil
- 5. Narrow cracks or openings that can form natural underground paths
- 7. Vertical conduit accessing mineral veins deep below
- 8. Methodical process of creating underground thoroughfares
Down
- 4. Permeable rock or sediment conveying underground water
- 6. A sprawling city often undergirded by complex subway networks
- 9. Urban subterranean transit artery often congested
- 10. Large natural voids sculpted by subterranean water
- 11. Horizontal passage in mining operations, facilitating ore removal
- 12. Italian for 'curtain'; a thin rock wall inside caves or tunnels
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