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Area
Underworks
Underworks is an area in Hollow Knight: Silksong — hidden foundation beneath the Citadel, home of ancient architects and the Clawline.
Area Information
Region:Act 2
Importance:Medium
Access:None
Details
Underworks
- •Position: beneath Citadel districts (Choral Chambers, Whiteward, Whispering Vaults
- •Role: foundation network; access corridors; Architect legacy
- •Key: The Cauldron (Clawline, Chapel of the Architect (Architect Crest)
- •NPC: Twelfth Architect
Underworks Overview
- •Interconnected underground routes linking Citadel chambers
- •Houses key tech/religious facilities (Clawline origin; Chapel)
- •Utility‑first layouts; multiple functional chambers
Underworks Geographic Position and Connections
Foundation Network
Critical junction beneath Choral Chambers and Whiteward
Multi-District Access
- •Choral Chambers (music district)
- •Whiteward (medical/purification)
- •Whispering Vaults (archives)
- •Bilewater (processing/water systems)
Underworks Sub-Areas and Architectural Marvels
The Cauldron
- •Location: east Underworks; workshop of the Twelfth Architect
- •Access: from Whiteward or Whispering Vaults
- •Reward: Clawline ability origin
Chapel of the Architect
- •Position: north of the Twelfth Architect
- •Access: Architect’s Key required
- •Reward: Architect Crest
Underworks [Twelfth Architect](/npcs/twelfth-architect)
- •Function: creator of Clawline; grants Chapel access
- •Position: custodian of Architect tech and tradition
Underworks [Clawline](/abilities/clawline) Revolution
- •Clawline: core mobility upgrade enabling new routes
- •Origin: Architect workshop (The Cauldron)
Underworks Spiritual and Technological Synthesis
- •Facilities: advanced workshop + sacred Chapel
- •Reward: Architect Crest (key‑gated)
Underworks Infrastructure and Function
Foundational Support
- •Structural supports, ventilation, utilities, maintenance access
Hidden Pathways
- •Alternate routes to bypass upper‑chamber restrictions
Underworks Early Act 2 Significance
Exploration Priority
- •Early Act 2 hub introducing Architect legacy and tech
Capability Foundation
- •Clawline expands traversal for Act 2 areas
Underworks Themes
Hidden Complexity
- •Foundation network; tech + sacred facilities; infrastructure routes
Underworks Gameplay Implications
Strategic Hub
- •Multi‑connection base for Citadel exploration
Ability Integration
- •Revisit prior areas with Clawline‑enabled paths
Discovery Incentive
- •Key‑gated Chapel; exploration rewarded
Area Information
Region:Act 2
Importance:Medium
Access:None
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Region of Act 2