Mission of San Juan – Revisiting the Tree of Life Challenge Tomb (part 3)

Jump onto the next circular wooden platform. Cross over it and scramble up onto the ledge on the far side.

Examine the mural (2/4), Tree of Life (Mam/Trials of the Gods), if you missed it on your first pass.

Follow the path away from the mural, up the slope and around to the left...

...to a wooden ledge jutting out over the chasm. There's a relic (7/9), one of several identical Primitive Dolls (Mam/Handmade Dolls), at the end of the path on the right. Examine the relic if you missed it earlier. Then return to the wooden ledge and jump onto the nearer of two circular platforms.

Use a fire arrow to ignite the gas vent above and to the left of the second platform. The explosion pushes that platform down, raising the one Lara is standing on.

Quickly scramble up the wooden wall onto the ledge above.

Lara goes into a defensive crouch. Get ready for 2 Yaaxil who approach along the lower/right path.

If you time it right, you can kill both by shooting a fire arrow into the gas vent that billows out over the red stone ledge.

If you already have relic #8, you can skip the next 3 screenshots. Turn around and continue along the path to the stele. Pick up the walkthrough below.

If you need relic #8, ignite the gas above the red stone ledge. Then jump over to the climbable wall and climb onto the ledge above before the gas starts flowing again.

The relic (8/9), yet another creepy Primitive Doll (Mam/Handmade Dolls), is sitting on the ground just beyond the rope-wrapped post.

There's no need to descend into the area below, so once you have the relic, just return the way you came. Jump down onto the red stone ledge and follow the path up and around to the right.

At the top of the path, jump onto the wooden structure that used to support a pair of round platforms. (This previously supported a pair of round platforms that Lara destroyed during her first pass through the level.) At the end of the wooden structure, jump onto the ledge ahead.

Climb the steps to the tomb stele. From here, you'll follow the same path shown in the tomb guide to get back to the Mountain Catacombs Base Camp. Then either fast travel away, or climb up the shaft into the building near the Deserted Cloister Base Camp and continue your explorations from there.