LakekeeperServant of the Lake guide
Exact puzzle answer

Servant of the Lake cabinet code 2451

The Day 3 laboratory cabinet answer, with the ingredient order that follows the lock.

Last verified 18 Aug 2026Source-backed
Quick answer

The Day 3 laboratory cabinet code is 2451. Use it during Assisting in Alchemy — Part 1 before mixing the ingredients.

In-game screenshot showing the alchemy animal testing scene
Steam screenshotThe cabinet opens the alchemy ingredient route.Real game screenshot
Focused answer

What to do

  1. 01
    Reach the alchemy office.

    Find the symbol board and read the portrait and container clues before trying the cabinet.

  2. 02
    Enter 2451.

    Use the four-digit answer at the Day 3 cabinet and collect the ingredients inside.

  3. 03
    Mix in the reported order.

    Continue with the oil, acid, blood, juice, and elixir sequence. If an item does not combine, use the acid troubleshooting page before overwriting a save.

Keep going

Use the related cards below for the next code, action, or chapter.

FAQ

Common questions

What is the Day 3 cabinet code?

The reported laboratory cabinet answer is 2451.

Keep going

Related answers

Chapter route25 cards

Servant of the Lake walkthrough

Choose one of 25 stuck points by day and task. Each card opens a focused step-by-step answer instead of one long wall of text.

Source-backed
Achievement help3 min

Servant of the Lake Animal Testing achievement

Finish the elixir and give one drop to the parrot before leaving the alchemy scene.

Community reported
Sequence answer3 min

Servant of the Lake left/right box sequence

The compact LLRRLR box answer, plus the longer hidden-route maze sequence kept separate from it.

Conflicting reports
Evidence ledger

Where this answer comes from

Reviewed 18 Aug 2026
S7AppUnwrapper Day 3 walkthroughThird-party walkthroughS16Steam Community full walkthrough (translated)Community guide / Russian-to-English translation