After using the switch at the back of the EMPEROR'S BOX, as described in the main walkthrough, climb down from the balcony, go to the southwest corner of the arena, and use the stone block to climb up to the spectator area. Climb the block steps to the corner room.
Kill 3 bats (18-20) in the anteroom.
NOTE: Prior to the first major patch, released 3/12/24, the third bat in the southwest corner room would not animate and could not be killed. This is now fixed, bringing the total kills for the level to 27. I'm not sure how this affects the Leave Them Sucking Wind (all kills) achievement/trophy for people who finished this level before the patch was released. Patch notes are on the official Tomb Raider website.
Step through the door you opened earlier and advance cautiously. As soon as Lara moves past the corner...
...a gate slams shut behind her, and the boulder at the top of the ramp starts to roll. Immediately run forward into the pit.
The boulder will then pass safely overhead.
Climb out, turn around, walk to the edge of the pit, and take a standing jump to grab the opposite edge. Pull up and follow the ramp to the room at the top.
Throw the switch to open the door in the room at the northwest corner of the arena. Then slide down the next, shorter ramp to land safely back in the anteroom below.
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.)
Walkthrough text and diagrams copyright © Stellalune (email ). Feel free to copy or print this walkthrough for personal use. By all means, share it with friends, but please include this credit line so people can send me their feedback. No part of this walkthrough may be reproduced on another site without permission.