Tomb of Semerkhet - Secret #4

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After retrieving the 2 CARTOUCHE PIECES from the side rooms off the LARGE ROOM WITH DANGING ROPES and climbing up to the the pole, as described in the main walkthrough, go after the secret.

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From the base of the pole, take a running jump to the rectangular alcove with the red walls on the left (east) wall. (As long as you set up the jump carefully, Lara can make it, but you could also jump onto the slope, slide back and grab the edge, then traverse to the alcove and pull up.)

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Push open the red door and go inside...

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...to find SECRET #4 (34/70), explosive arrows and a small medipack.

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Come back out to the big room, turn around to face the door to the secret room, and then flip to the left...

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...to land on the slope. Slide back...

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...grab the edge...

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...and drop to the floor.

[Tomb of Semerkhet Walkthrough]