The SECOND ANKH is behind the carved door at ground level on the north side of the sphinx. That is, the right side if you've just slid down the sphinx's side after getting the first ANKH, as shown above.
- OR -
If you're facing the sphinx, as shown here, the door is in the narrow space between the left side of the sphinx and the cavern wall.
Enter and proceed to a slope above a pool. Turn around, slide down backwards, and grab the end of the slope.
Traverse left and drop onto a manmade ledge, where you'll find more magnum ammo (17). (If Lara falls in the water while exploring, just climb out on the step to the right of the slope, climb back up into the hallway, and try again.) After picking up the ammo, climb the block steps to another hallway.
Ignore the next set of steps directly ahead. Instead turn left...
...and hop down another series of block steps to a second pool. Swim down to the bottom to find a GOLD KEY (18).
The lock for that key is at one end of the bridge overhead. To get there, climb back up the block steps.
Turn left, then go up the smaller steps to another ramp.
In the remastered game, Lara can do a midair roll, so this section is now much easier. Turn around, slide down facing uphill, and grab the end of the slope.
Continue to hold Action as you pull up...
...and immediately press Jump + Roll to backflip off the slope, roll in midair...
...and grab the edge of the bridge. Pull up. (If you miss and fall into the water, swim to the left, climb back to the top of the ramp and try again, as shown above.) Use the GOLD KEY in the keyhole to open the door at the opposite end.
There's another centaur (10) in the room beyond. Again, you can run in and fight it if you like. Or, take a few steps toward the door with weapons drawn, get a lock on it, and step back toward the keyhole. As with the last centaur, if you don't get too close, it won't start to throw fireballs. Maintain the target lock by holding Action...
...and Lara will track the centaur as it runs around the room...
...and shoot whenever it runs past the door.
When it explodes...
...enter the room and pick up another small medi pack (19) and ANKH (20). (There's also a save crystal here in New Game+.)
DARK MODE: Even with brightness adjusted, dark images on a light background can be hard to see. May I suggest a reputable dark mode browser extension, such as Dark Reader? (Download only from trusted sites, like darkreader.org or your browser's web store.)
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