Tomb of Seth - Secret #2

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In the room with the stars on the ceiling, where you killed the 2 scorpions, there's a niche in the north wall containing a large medipack and a ramp leading down.

Tomb Raider Last Revelation screenshot
Follow the ramps down to the next room. (Note the opening in the ceiling partway down. You can't reach it from below, but you'll come through it from above later.)

Tomb Raider Last Revelation screenshot
At the bottom is a sandy pit with two pedestals sitting on the other side. You can't reach them yet, so drop down into the pit.

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As you step into the alcove in the northwest corner of the pit, the chime sounds for SECRET #2 (10/70).

Tomb Raider Last Revelation screenshot
Immediately roll and shoot 2 red scorpions that crawl toward you.

Tomb Raider Last Revelation screenshot
Then pick up the shotgun shells.

Tomb Raider Last Revelation screenshot
Climb onto the low pedestal in the northeast corner of the pit and pick up a small medipack. Then climb out of the pit and return up the ramps to the room where Ahmed waits.

[Tomb of Seth Walkthrough]