Cellar route: left hallway—spade, magnet, matches; middle hallway—corkscrew, bottle, matches; final hallway—weight, sledgehammer, hook. Set the three clocks left to right to 5:00 → 8:00 → 10:00. This tool order and clock sequence are stated in the official game walkthrough. The optional mouse achievement is a separate interaction; do not substitute a hammer for the middle hallway's corkscrew.

What to do
- 01Clear the left hallway.
Choose the spade, magnet, and matches. Use the magnet at the mouse hole to retrieve a key, dig up the buried box with the spade, unlock it, then take and light the torch. Record 8:00.
- 02Clear the middle hallway.
Choose the corkscrew, bottle, and matches. Open the barrel with the corkscrew, collect oil in the bottle, ignite the oil and let the barrel explode, then pour oil into the rock opening and ignite it again. Record 10:00. A hammer is not listed as a replacement for the corkscrew in the official route.
- 03Remember the starting statue.
Before entering a hallway, interact with the statue outside the routes and record 5:00.
- 04Cross the final hallway and set the clocks.
Take the weight, sledgehammer, and hook. Attach the weight to the ring with the hook, break the pillar with the sledgehammer, then set the three timepieces from left to right to 5:00, 8:00, and 10:00. Take the book and hand it to Aldous.
- 05Keep the hidden clock separate.
The 3:05 / 4:05 discussion belongs to the secret achievement route and should not replace this sequence.
Common questions
What are the cellar clock times?
Set the normal cellar sequence to 5:00, then 8:00, then 10:00. Do not confuse it with the hidden ending clock.