Unlocking Act 3 in Hollow Knight Silksong requires more than simply progressing through the main story—it involves a series of intricate side quests and specific achievements. After defeating the final boss of Act 2, players must complete several tasks scattered throughout Pharloom to gain entry to the game’s true final act, The Abyss. Below is a comprehensive guide to help you fulfill these requirements and reach Act 3.
Steps to Enter Act 3 in Hollow Knight Silksong
Unlike the straightforward transition between the first two acts, advancing to Act 3 demands more than just overcoming a single boss. Once you have vanquished the Act 2 final boss, focus on the following objectives:
- Finish all wishes listed on the wishboards located in Bone Bottom, Bellport, and Songclave.
- Construct the Bellhart house.
- Rescue at least half of the fleas and guide the caravan to safety at Pale Lake.
- Collect all Cogheart pieces and deliver them to the Sentinel in Cogwork Core, then complete its associated quest.
After meeting these conditions, you can speak with the Caretaker near the Act 2 boss chamber. A new dialogue option will appear, granting access to Act 3 and The Abyss. You can enter this area by activating the door mechanism with the Clawline in the eastern section of Deep Docks.
Detailed Requirements for Unlocking Act 3
Assisting the Flea Caravan
One of the prerequisites is completing the flea caravan quest. While collecting every flea is not necessary, you must find and rescue more than half of them. Consult a map guide if you are missing any locations. After gathering enough fleas, escort them to the far end of the Pale Lake region in Bilehaven. When you reach the correct spot, Hornet will comment on its suitability. Return to the caravan to send it to safety.
Completing Wishboards
Another essential task involves finishing the wishboards in Bone Bottom, Bellport, and Songclave. Although it is uncertain if every wish is mandatory, it is advisable to complete them all to ensure progress—including the more unusual requests.
Building Your Home
Once you have saved Bellhart and purchased Shakra’s maps to activate and finish her quest, speak to the NPC near the Bellhart bench to unlock your personal home.
Restoring the Sentinel
To fulfill the Songclave wishboard, you must first gather three Coghearts and bring them to the inactive automaton in Cogwork Core, where a valuable Pale Oil item is also located. After reactivating the Sentinel, find him in both the Memorium and Citadel Spa areas before his quest appears on the Songclave wishboard.
By following these steps, you will unlock Act 3 and experience the true conclusion of Hollow Knight Silksong.