Finishing the three-day story of Servant of the Lake does not close the case. As the carriage leaves the Vanderboom estate, the maid Kate hands you a letter asking you to find her brother, who vanished a year earlier. Working through her clues reopens old chapters in a new way and ends with the “You’ve Found Him” achievement plus a hidden clip.
Quick answer: After the ending, use the Servant’s Notebook to replay memories in this order and complete each hidden interaction: set Aldous’s clock to 04:05, press the bathroom tiles Alexandra → bathtub → suitcase → hand, enter RRRLRLRRL on the alchemy left/right box, build the attic constellations (four building, three water, two moon), copy the note’s symbol onto the cellar wine box, place the bronze/silver/gold bottles on the spiral/S/triangle marks, open the lockbox with 6294, then use the telescope on the window and click the lit window.
How the post-game clue chain works
Completing the game unlocks the ability to restart individual chapters from the Servant’s Notebook. That replay system is the whole mechanic behind this achievement. Each hidden note you uncover tells you which earlier memory to revisit next, so you stop treating Day 1, Day 2, and Day 3 as a straight line and instead jump between tasks in the order the clues dictate.
The trail begins the moment Kate’s letter appears. Her first hint reads, “The crow awakens at five past four.” That line points you back to the one memory that holds both a clock and a crow.

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Add to Google Preferences →Clue 1: Set Aldous’s clock to 04:05

Clue 2: The bathroom tile puzzle

Clue 3: The alchemy left/right box
The maze reuses the left and right symbols you already learned during the alchemy work. Trace the path from the middle of the maze to the exit, counting each turn, and you land on this nine-step route.

Clue 4: The attic constellation box
The symbols on the note group into three families, and the constellation box has three matching markers: a building, water, and a moon. You build one constellation per family using the number of icons on the note.

Clue 5: The cellar wine box symbol

Clue 6: Arrange the bronze, silver, and gold bottles
Stay in the Day 3 – Dressing Up For Dinner cellar. Each colour in the dream matches one symbol under the shelves.
| Bottle | Symbol |
|---|---|
| Bronze | Spiral |
| Silver | S (snake) |
| Gold | Triangle with a horizontal line (the mark on baby James’s forehead) |

Clue 7: Solve the 6294 lockbox and take the telescope
The final note pulls four numbers from four different memories. Each symbol on the page points at one earlier puzzle, and together they form the lockbox code.
| Position | Where the number comes from | Value |
|---|---|---|
| 1 | The Xs match Alexandra’s note in Day 2 – Helping with Bathing; cross off all numbers but one | 6 |
| 2 | The window with the curved arch (top window) in the house painting, Day 2 – Preparing Coffee | 2 |
| 3 | The number the eyeball looks at in Day 2 – Going Hunting | 9 |
| 4 | The final symbol from Day 3 – Assisting in Alchemy | 4 |
How to confirm the achievement unlocked
Clicking the lit window finds Kate’s brother and unlocks the “You’ve Found Him” achievement. Choose Watch Clip to see the hidden scene, set one year before the main events of the game.
Note: if the telescope shows nothing, you have not missed a clue or another item. Change viewpoints and keep scanning the distant structures until the castle and its bats come into view, then click the window that lights up.





