High-intent checkpoint

Servant of the Lake deep cleaning puzzle and achievement

Clean all three Day 2 stains, use each room's clue, and trigger the optional Deep Cleaning check before leaving the corridor.

Last verified 21 Aug 2026Conflicting reports
Quick answer

Clean all three Day 2 stains, but verify the optional Deep Cleaning target on your build before releasing the brush. Public guides agree on the cleaning route but conflict over the optional target and the servant-room order, so this page does not present one trigger as confirmed.

Focused answer

What to do

  1. 01
    Take the brush.

    Talk to Kate upstairs, open the bag on the table, and take the cleaning brush before touching the red stains.

  2. 02
    Clean the upstairs stain.

    Use the dot-count clue and clear the droplets from the smallest count to the largest count. If a mark returns, reset and follow the visible count again.

  3. 03
    Handle the servant-room stain carefully.

    Inspect the droplets and keep the brush active until the current build accepts the correct order. Some guides point to the pale stick-figure drawing, while another public reference points to a kitchen portrait; record which target works instead of treating either one as universal.

  4. 04
    Clean the balcony stain.

    Use the direction of the dots as the ordering clue, then finish the stain and return upstairs.

  5. 05
    Take the next checkpoint.

    Talk to the maid, look through the bathroom keyhole, open the balcony, and click the distant figure to begin Going Hunting.

Keep going

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

FAQ

Common questions

How do I unlock Deep Cleaning?

Complete all three Day 2 stains, then check the optional target before releasing the brush. Public sources conflict between the servant-room drawing and a kitchen portrait, so the exact trigger remains Needs verification.

Evidence ledger

Where this answer comes from

Reviewed 21 Aug 2026
S22All Things How full puzzle walkthroughThird-party walkthroughS24Neoseeker Day 2 walkthroughThird-party Day 2 walkthroughS26Prima Games Day 2 walkthroughThird-party Day 2 walkthroughS37Public achievement reference with conflicting Deep Cleaning triggerPublic reference / conflicting report