
If you reach the THIRD CIRCUIT BREAKER but it's inaccessible because the glass doors are still open, as shown above, here's what to do.

Turn around and press the button to open a trapdoor elsewhere. (This is not shown, but there is an audio cue.) Climb back into the rusty passageway, which is just to the left of the button.

Head forward then turn right at the next corner.

Turn right again. (Ignore the blue passageway; it leads back to the BALLROOM.) A few steps ahead is the trapdoor you just opened.

Draw weapons and step off the edge.

As soon as Lara hits the floor of the RESTROOM, 2 thugs attack, one with a wrench, one with a gun. Run forward a little so you can see better.

Then start shooting. When they fall, grab their Uzi ammo and 2 bundles of harpoons.
NOTE: If you don't have the UZIS yet, you'll get them here instead of ammunition.

Now press the button in the alcove next to the lock where you used the RUSTY KEY earlier.

This closes the glass doors on the other side of the room. Now you will be able to reach the CIRCUIT BREAKER from the other side.

Climb back up through the trapdoor in the ceiling and follow the rusty passageway...

...forward, left...

...then left again...

...to the opening above the blue alcove.

Drop down and take the THIRD CIRCUIT BREAKER.
When you have it, climb back up into the rusty passageway and follow it forward, right, and right again (i.e., retracing the route you just took). Again, drop through the trapdoor into the RESTROOM, where you killed the last two enemies. Now, pick up the main walkthrough at the section titled, "YOU SHOULD NOW HAVE ALL THREE CIRCUIT BREAKERS."
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