How to Reach the Abyss in Hollow Knight: Silksong (Act III Unlock Guide)

Hollow Knight: Silksong feels like it wraps up after Act II—but the real adventure isn’t over. Hidden behind layers of quests, secrets, and community-discovered triggers lies Act III: The Abyss, a massive post-game chapter that reveals Pharloom’s darkest truths and Hornet’s ultimate challenge.

This guide combines verified steps and player-tested strategies so you can unlock the Abyss, conquer its toughest trials, and see Silksong’s true ending.


🗝️ What is Act III: The Abyss?

Act III, known as The Abyss, is Silksong’s secret story chapter that unlocks after meeting specific conditions. It adds:

  • Entirely new areas, bosses, and lore content.

  • Harder enemies and fights designed for seasoned players.

  • The true final boss and ending, required for 100% completion.

  • Progress carryover—your upgrades, skills, and items from Acts I–II remain intact.


How to Reach the Abyss in Hollow Knight: Silksong
⚙️ Prerequisites: Unlocking the “Silk and Soul” Wish

Before you can dive into Act III, you’ll need to complete the Silk and Soul Wish, a long but rewarding questline.

A. Complete Nearly All Wishes

  • Finish ~45 Wish quests from Wishboards across Bone Bottom, Bellhart, Songclave, and The Citadel.

  • These include:

    • Grand Hunts (bosses like Savage Beastfly, Wailing Mother).

    • Donation Wishes (resources for Bone Bottom repairs, Songclave upgrades).

    • Wayfarer Quests (NPC rescues such as The Lost Fleas, My Missing Brother).

  • Tip: While some players report skipping a few, completing them all is safest.

B. Assist the Flea Caravan

  • Collect 25 Fleas scattered across Pharloom.

  • Speak to Fleamaster Mooshka three times to move the caravan into the Putrefied Ducts.

C. Build Your Bellhome

  • After saving Bellhart, talk to Pavo to unlock your personal housing: the Bellhome.

D. Repair the Sentinel

  • Gather Cogheart pieces for the automaton in Cogwork Core.

  • Find him later in Memorium and Citadel Spa to finish repairs.


🔍 Completing the “Silk and Soul” Wish

Once the Wish is available, you’ll need four key items:

ItemLocationHow to Obtain
Maiden’s SoulBone BottomSpeak to the Chapel Maid after triggering the Skull Tyrant fight (bench event).
Hermit’s SoulBellhart BellwayBreak the fake wall in pipes below Bellway; talk to the Hermit.
Seeker’s SoulBilewaterFind the abandoned Bellhome left of the bench.
Snare SetterWeavenest AtlaOpen the Needolin door under Bone Bottom; loot from a table above the bench.

Final Steps:

  1. Deliver all items to the Caretaker in Songclave.

  2. Craft the trap → proceed to The Cradle for the Grand Mother Silk boss fight.


⚔️ Triggering Act III: The Grand Mother Silk Fight

  • During the fight, play the Needolin instead of binding Grand Mother Silk.

  • After credits roll, return to the main menu—your save file will be covered in black vines.

  • Break the vines by pressing the action button repeatedly.

  • Load the save → welcome to Act III: The Abyss.


🌑 What Awaits in Act III: The Abyss

  • New Areas: Abyssal Chasm, Void Altars, and other nightmare zones.

  • Cranked-Up Difficulty: Enemies hit harder, bosses require perfect execution.

  • True Ending: Face the real final boss and Pharloom’s deepest lore.

  • Completion Goals: Collect every Crest, Tool, Mask Shard, and Spool for 100%.


💡 Pro Tips from the Community

  • Upgrade fully: Max out Needle, Tools, and Crests before attempting Act III.

  • Farm efficiently: Equip the Shard Pendant (from The Marrow) for faster Shell Shard gains.

  • Map the Abyss: The map is hidden above a bench near the zone’s end.

  • Smart tool use: Try Plasmium Phial (extra health) or Flintslate (fire damage) for tough bosses.


❓ FAQ: Act III – The Abyss

Q: Can I access Act III after finishing Act II?
Yes—load your vine-covered save file, break the vines, and you’ll enter Act III.

Q: Are there missable items in Acts I–II?
No, all progress carries over. Just complete as many Wishes as possible to avoid tedious backtracking.

Q: How long is Act III?
Expect 10–15 hours for full completion, depending on skill.


💎 Conclusion: Embrace the Darkness

Unlocking Act III: The Abyss is Silksong’s ultimate challenge—demanding preparation, patience, and mastery. Complete the Wishes, gather the key items, and face Grand Mother Silk to break into Pharloom’s hidden depths.


🔗 Additional Resources

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