Where to go in Chapter 4 after beating Jackenstein

Quick Scoop

After beating Jackenstein, go back to the Study area and use the climbing gear to open up the optional routes you could not reach before. The main next step is to explore the newly accessible vertical sections, then return to the gold piano in the Study if you are chasing the secret boss path.

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What opens up next

Jackenstein drops the climbing tools, which are the key item that lets you continue through Chapter 4’s blocked vertical areas. That means the path forward is not usually a brand-new main road, but a set of previously locked rooms, walls, and upper ledges in the library and Dark Sanctuary.

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  • Head back to the Study hub.
  • Use the climbing gear to reach higher paths and side rooms.
  • Keep an eye out for optional rooms with music pieces if you want the secret content.
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If you want the secret route

The secret-boss route goes through the Study, the gold piano, and a set of three hidden music pieces. After Jackenstein, you can fully explore the first Dark Sanctuary area, and one guide specifically warns not to push too far forward before grabbing all three pieces.

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  1. Return to the Study after the fight.
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  2. Use the climbing gear to reach the three optional locations.
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  3. Collect all three music pieces.
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  4. Play them at the gold piano to unlock the fireplace path.
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Practical direction

If you only want to continue the chapter normally, the safest answer is: go back to the Study and follow any climbable route you could not access before. If you are trying to 100% the chapter, do the side paths first so you do not miss the hidden puzzle chain.

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Forum-style advice

“Just keep searching, and you'll discover it eventually.”[6]

That lines up with the community advice: the chapter progression is mostly about revisiting old rooms with your new climbing ability, not rushing straight ahead.

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TL;DR

After beating Jackenstein, go back to the Study, use the climbing gear, and explore the newly unlocked upper areas; if you want the secret boss, collect the three music pieces and use the gold piano route.

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