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★ Best Crest Builds | Best Tools
☆ Full Interactive Map of Pharloom!
★ Mask Shards | Spool Fragments | Abilities
☆ Boss Guides: The Unravelled | First Sinner
★ Wishes: Broodfeast | The Lost Fleas

Putrified Ducts is a location in Hollow Knight: Silksong. See a map of Putrified Ducts, a list of points of interest including locations for bosses, wishes, tools, skills, abilities, crests, NPCs, items, and a guide to 100% the area here!
List of Contents
| Map | Overworld |
|---|---|
![]() |
To reach the Putrified Ducts, head to the Memorium via the Choral Chambers. From the bottommost floor, keep to the right until you reach an empty room. Jump at the far right to reveal the entrance to the Putrified Ducts.
Pharloom Full Map and All Locations
| Putrified Ducts Points of Interest | |
|---|---|
| Wishes | Tools |
| NPCs | Items |
| Task | Description | Reward |
|---|---|---|
| Broodfeast |
How to Unlock: Talk to the Huntress in Putrified Ducts Task: Obtain 15 Seared Organ, 35 Shredded Organ, and 10 Skewered Organ |
Longclaw |
| Passing of the Age |
How to Unlock: Interact with the hidden tablet in the Putrified Ducts near Fleatopia Task: Find the 7 Hiding Spots of Herald the Mushroom |
Secret Ending |
All Task Locations and Rewards
| Tool | Slot and Effect | How to Get |
|---|---|---|
Wreath of Purity
|
Slot: Blue Fragile band woven of reed and leaf, crafted to repel Muchmaggots. If broken, the wreath will be repaired while resting at a bench. |
![]() Found in a hidden room in Putrified Ducts |
Longclaw
|
Slot: Blue Talisman fashioned from the talon of a large predator. Increases the range of needle attacks. |
![]() Obtained after completing the wish Broodfeast. |
| NPC | Location |
|---|---|
| Vog | ![]() Vog is found in the room above the Bellway and Bench. You need to reach her by using Barnak's grapple on you to scale the area. |
| Huntress | ![]() Found in the large hall in the bottom-left portion of Putrified Ducts. She is inside a room with a bench. |
| Overworld View | Map Location | |
|---|---|---|
![]() |
![]() |
|
| Found in the rightmost area of Putrified Ducts, past the clear water. This requires the Cling Grip to reach the item. | ||
| Item | Location |
|---|---|
| Frayed Rosary String | ![]() Found glowing beside a drain. It is just below the passage to the next room. |
| Key of Apostate | ![]() Found inside a cage that you need to break to retrieve the item. Head to the bottom of Putrified Ducts and break a wall to the left of your screen. Then, continue heading left to see the Key in upper floor of the hall. |

Pharloom Full Map and All Locations
Putrified Ducts 100% Map Guide



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