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Clock Tower
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Spoilers Ahead
This page contains spoilers for a Studio Addition. View at your own discretion.
Clock Tower
Access to Mt. Holly's Clock Tower has always been heavily restricted. Which might explain why maintenance has been unable to mend the perpetually halted clock face, a testament to the unchanging winds of the sacred hour.
The Clock Tower is a room in Blue Prince. It is listed as Room 3 of the Studio Addition page in the Room Directory.
Drafting restrictions
Clock Tower can be permanently added to the draft pool in the Drafting Studio.
The Clock Tower cannot be drafted when facing North on either Wing (can draft on corners).
Points of interest
Items
The Clock Tower often contains one or more items on the table next to the swan statue. The possibilities are:
Documents
The Clock Tower contains one note, sitting between a swan statue and a rune fragment.
The note reads:
Southward I see a swan,
Ashen like sands of the shore,
Carried by westwardly winds,
Rouge like the moon of the north.
Eastward I see a crow,
Dark are the days coming fourth.
Spoilers Within
This section contains spoilers for the fragment.
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The fragment seen on the table is actually a clue for the Sanctum Puzzle. It establishes the correct mote to one specific border. For more on this, refer to the Realm & Rune book.
Effect
The Clock Tower increases the next day starting key 
for every Tomorrow 
room present in the mansion. This includes the Clock Tower itself.
Puzzle
Spoilers Within
This section contains spoilers for this room's puzzle.
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While this room does not obviously have a puzzle, in Room 46 after the first time the room has been reached, it contains a hint for a Sanctum Key being "high up among the clocks". This alludes to it being within the Clock Tower.
Spoilers Within
This section contains spoilers for additional ingame hints.
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Some hints and other puzzles throughout the game refer to the time 1:30 as the "sacred hour", implying that this time is important, especially given the room's directory description. The time also appears in other contexts.
Some of these locations include:
- A New Clue: The cuckoo clocks are set to 1:30.
- Safehouse: The museum heist is performed close to 1:30.
- Room 46: Beyond the puzzle, in Herbert's Last Will, the cuckoo clocks are compared with the sacred hour.
- Treasure Trove: In the 32nd memo, the sacred hour is mentioned to not actually be on the hour.
- The Precipice/Unknown: This puzzle also involves waiting until the sacred hour.
When combined with mentions of the sacred hour in the Clock Tower's Room Directory description or that the letters in the poem in the Clock Tower spell out "SACRED", the connection of the time being important is increased further.
Spoilers Within
This section contains spoilers for solution.
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One of the clocks of the Clock Tower is broken and does not have its time change. Its time is exactly 1:30. Additionally, at the bottom of the tower, a clock is inscribed in the floor, which is also set to 1:30.
The solution to this puzzle is to be inside the Clock Tower at 1:30. Note that this only works the first time it is 1:30 in a day; waiting until 1:30AM or even 12 hours past that does not work. A cutscene will play, revealing a hidden room inside the Clock Tower.
Spoilers Within
This section contains spoilers for reward.
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The room that opens from solving the puzzle is not permanently open, so it needs to be opened again to come into the room again. This room contains eight clocks that must be set to specific times according to the eight memos inside.
First Memo
Second Memo
Third Memo
Fourth Memo
Fifth Memo
Sixth Memo
Seventh Memo
Eighth Memo
To solve this puzzle, knowledge of what memo colors mean, including that handwritten red memos (as the 8th memo is) are different than regular red memos, is required. This information can be learned in Security.
Spoilers Within
This section contains spoilers for solution.
Click to view
* The first memo establishes an important rule for excluding possibilities: all times must be unique.
- The second memo reveals that 5 of the clocks will have round hour times (ending in 00 minutes), while the sixth memo excludes all clocks from having the numbers 1, 2, 3 or 4. Together this means that 05:00, 06:00, 07:00, 08:00 and 09:00 are the only valid round hours, and will be used.
- The last memo tells us all times must be in ascending order (earliest to latest), so the first clock must be 05:00 as no time earlier than that can be made with the restrictions above.
- Memos four and five together means that the fifth clock has to be a round hour clock with a 7 in it, so it's 07:00.
- The seventh memo requires it's clock to be the inverse of a different clock. Since you can't make a round-hour with this requirement, this must be a non-round hour.
- Since the fifth clock is 07:00 and the seventh is non-round, we are left with only 2 clocks (sixth and eighth) and two round-hours after 07:00 (08:00 and 09:00). If we follow the ascending order rule, this means the sixth clock is 08:00 and the eighth clock is 09:00.
- The third clock must be between 05:00 (the first clock) and 07:00 (the fifth clock). It must have a repeating digit (from it's own memo) and a 7 (from the fourth memo). It cannot have the numbers 1 through 4 (from the sixth memo). With this, the only valid position for the obligatory digit 7 is the last digit, and the only repeating digits left available are a pair of 5s, making it 05:57.
- By ascending order, the fourth clock must be later than 05:57 and we are still missing a 06:00, so the fourth clock must be it.
- The seventh clock has to be between 08:00 and 09:00. Since it must be the inverse of a related clock, and the only available clock for it to be related is the second clock (between 05:00 and 05:57), the only possibility left for the pair are 05:08 and 08:05.
We are left with the answer:
| Clock | Time |
|---|---|
| 1 | 05:00 |
| 2 | 05:08 |
| 3 | 05:57 |
| 4 | 06:00 |
| 5 | 07:00 |
| 6 | 08:00 |
| 7 | 08:05 |
| 8 | 09:00 |
Using this answer will cause a drawer on the base of the fifth clock to open, revealing a Sanctum Key.
Interactions
As a Dead End
- Activating Draxus, the Dead makes the Clock Tower more common today.
[Outer Room: Tomb] Drafting the Clock Tower will spread 5
in the Tomb.
[Upgrade Spoiler: Cloister] The Clock Tower can be drafted from the Cloister of Draxus. Doing so immediately provides 4
.- [Book Spoiler: Drafting Strategy: Architectural Digest Vol. 5] The Clock Tower counts towards the 20 Dead Ends required for the Drafting Strategy Sweepstakes.
As a Tomorrow Room
- Having the Chronograph makes drawing the Clock Tower more likely.
- [Satellite Dish Spoiler] Drafting the Clock Tower can trigger a particular experimental trigger, added after raising the Satellite Dish and downloading the data packet, which is activated by drafting Tomorrow Rooms.