Laboratory

From the start, move forward and descend the stairs. Turn right upon reaching the ground and go to the left corner to find a bottle of oil near a fallen shelf.

To the left of the stairs, locate barrels and shelves. Climb the barrels to find another bottle of oil on top of the shelf.

Enter the next room and go down the stairs. To your right, a chest is hidden by crates; open it for a tinderbox. Move the crates to find another tinderbox in the corner.

Proceed to the main room and look right. On a table with equipment, you'll find a note indicating the chemicals have been moved to the Wine Cellar.

On the shelf opposite the equipment table, collect a bottle of oil.

Look into the red grating on the ground to trigger a flashback with Alexander discussing ingredients.

In the other corner of the room, open the furnace to find a tinderbox. Open the drawers of the table in front of the furnace to get another tinderbox and a strange canister that functions as a flashback diary.

Interact with the strange canister to read a personal account about wanting to go home and seeking fair judgment.

After the canister, pick up the Chemistry Pot from the table and read the note there. This note explains that combining four chemicals creates a strong acid.

Exit the Laboratory through the main door, go up the stairs, and through the door to the Entrance Hall.

In the Entrance Hall, move forward, down the stairs, and to the Wine Cellar door.

Use the Wine Cellar Key from your inventory (press TAB to access) to unlock the Wine Cellar door.