Corrupted underground passage network with environmental decay, toxic hazards, and structural deterioration.
The Putrified Ducts are an area connected to Memorium and Bilewater in Hollow Knight: Silksong. [Missing information]
Putrified Ducts is a grim, Bilewater‑like gauntlet with worms, Barnak tongues, Ductsuckers, and Spit Squits; avoid the water and stay high.
Unlock the final Bellway, grab the map and Wreath of Purity, meet Vog, mine Craftmetal at Pale Lake, then relocate the Flea Caravan to turn this place into a haven.
Keep to upper ledges over worm water; dodge Ductsuckers and Spit Squits.
At the far right, drop to the signed door: unlock the Bellway (80) and nearby Bench (60).
Backtrack left and drop to ground level; ignore the floor hole for now and enter the dark tunnel left.
Let a Barnak tongue lift you, then break free near the top to reach the map alcove; grab the map and return.
Drop down the floor hole(s) to the lowest level; first open the left shortcut back toward the Bilewater link.
Head right through the long corridor to secure the Wreath of Purity—very helpful for exploring this region.
Advance along the route and follow Flea markings to find Vog.
Speak with him to learn about the Ducts and set up later relocation.
Push through to the tranquil Pale Lake beyond the Ducts.
Mine the exposed Craftmetal vein and note this calm area for future travel.
Return to the Caravan and share the Pale Lake discovery so they’ll move here.
Once relocated, the Ducts gain a permanent warm rest stop—one of the coziest hubs in Pharloom.