Make a U-turn to the right and approach the next spike pit.

Take a running jump to grab the first rope.

Swing and jump to the second rope, then to the doorway.

Go up the ramp to the trapdoor you just opened.

A hawk-headed guardian (perhaps a minion of Horus?) waits in the room above. When you climb through the opening, he begins to shoot energy bolts from his staff. It isn't too hard to dodge them if you immediately run forward a few steps, so Lara can maneuver without hitting the large columns/

Then start flipping from side to side while firing.

You can use any weapon you like. It takes a while with pistols, and Lara will probably lose a little health in the process.

Uzis are a bit faster, and it only takes about 7 grenades or explosive arrows to destroy the guardian.

Alternatively, you can pull up through the opening, run straight at the guardian...

...and crouch. Like the guardians in CLEOPATRA'S PALACES, he'll continue firing over Lara's head without actually doing any damage. You can then use pistols to destroy him.

Afterwards use your CROWBAR to pry the WESTERN SHAFT KEY from the wall with the huge, carved star.

This causes a block to recede elsewhere, revealing a doorway.

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