You need to assemble/light a torch before going into the lab until you can work out a way to get an independent light source going in the lab area. The timer bar on the right will appear and gradually burn down as the torch does similarly.

GO OVER TO THE DOOR.

S
V
K
-- END PUZZLE --

Grab the statuette of Anubis from under the flame urn.

Leave the room.


[LAB]
Enter the door to the right of the desk.


[ROTATING ROOM]
Click in the center of the room until you can reach two of the statues.

Click on the statues and then click in the center of the room until you get to
the other side.

Click on those statues. Once you have reached all four statues, a panel will
pop open, revealing yet another Anubis statuette.

Click towards the center of the room until you actually are at the center of
the room. Then click between the two statues that are parallel to the door you
came through (they'd be to your left when you entered the room).

Turn around and read the gold plate.

It is better than God
It is worse than the Devil
Poors get plenty
Rich need it
If we eat it we die
What is it?

The answer, of course, is "nothing."

Leave the room.


[LAB]
Enter the Storage Room.


[STORAGE ROOM]
Use the Brahman seal on the middle urn (the one with "nothing" on it).

Leave the room.


[LAB]
SAVE YOUR GAME!

Go back to the Rotating Room.


[ROTATING ROOM]
Make your way back to the door with the gold plate and go in.

The only instance where I can think of a Game Over in this part for no reason is when your torch burns out.

Save your game!

Off to your right you'll find a large half cask filled with water. And, to the left of it, a crude scale that looks like a black stool. Click on it to hear Sherlock proclaim that its a "balance." the charter here is to put four liters of water on that scale.

Water Puzzle Solution:

Take the little bucket. Fill it with water. Pour it in the big bucket. Click on the vials at the left side of your screen to put the little bucket down. You should now have 1 liter of water in the small vial (bucket) and 6 liters in the big vial (bucket). Pick up the big bucket and dump its contents on the floor; dark spot between the half cask and the scale. Put the big bucket down. Pick up the small bucket and dump the 1 liter into the big bucket (watch the vials). Then, fill the little bucket once and put it in the big bucket. You should have exactly 4 liters! Success, you clever sleuth! Put the little bucket down. Pick up the big bucket and put it on the scale. In a cutscene a Chess board will immerge from an alcove in the center of the dirt floor.

Turn right and walk up to the water tub and the two buckets. Click on the tub to start the puzzle. You have a five liter bucket and a three liter bucket. The goal is to fill the five liter bucket with four liters of water and put it on the rock to the left of the tub. You can use the following solution:
- Fill your three liter bucket with water. Empty it into the five liter bucket.
- Fill your three liter bucket with water again. Now transfer as much water as possible to the five liter bucket.
- This will leave five liters of water in the large bucket and one liter of water in the small bucket.
- Empty your five liter bucket by using the drain on the right.
- Transfer the one liter of water from the three liter bucket to the five liter bucket.
- Fill your three liter bucket from the tub one last time.
- Transfer the three liters of water from the small bucket to the large bucket.
- Now the large bucket has four liters of water. Put it on top of the rock to the right.

Turn around and look at the newly raised pedestal.