After assisting Bona in purifying the Chu'ulel Light Core's Abyssal Corruption in Genshin Impact, players must help her locate the Primal of Flame. Once found, Travelers must present two Pyrophosphorites (obtained during the Palace of the Vision Serpent Quest) to the Altar of Primal of Flame.
This offering opens a path to Tonatiuh, a floating island above Ochkanatlan's Cradle of Fleeting Dreams. Reaching Tonatiuh completes the To the Sky-Road Quest and begins The Other Side of the Sky Quest, requiring Travelers to gather four Burning Firestones to acquire the Jade of Return.
Obtaining the Four Burning Firestones in Genshin Impact
Burning Firestone Location 1
The first Burning Firestone is obtained by:
- Reaching Tonatiuh.
- Completing the cutscene with Bona; the Little One will retrieve the first Firestone.
- Following the Little One to the bridge.
- Activating the bridge mechanism to raise the lift.
- Interacting with the small Saurian.
- Speaking with Bona.
- Watching another cutscene.
Burning Firestone Location 2
The second Burning Firestone is located on the northeastern island. To obtain it:
- Rotate the right and left floating island mechanisms.
- Cross the extended bridge to the east.
- Raise the lift.
- Follow the Little One to the Firestone.
- Collect a Common chest along the way.
- Activate the mechanism to the right of the Firestone.
- Ascend the spawned platforms to the upper level.
- Defeat the enemy.
- Collect an Exquisite chest at the top.
- Activate the mechanism to open the gate.
- Descend to the small Saurian.
- Open the locked door.
- Tell the Little One, "Let's return to the altar!"
- Return to the Altar of Primal of Flame.
Burning Firestone Location 3
To acquire the third Burning Firestone:
- Rotate the right and northern floating island mechanisms.
- Cross the bridge to the lower level of the northern island.
- Follow the Little One.
- Observe the Secret Source Sentinel carry the Firestone to the southwestern island.
- Proceed to the northwestern edge.
- Ride a Qucusaurus.
- Fly towards the Pyroculus.
- Activate the mechanism within the tower.
- Transform into a Qucusaurus.
- Fly to the unlocked door.
- Activate the elevator to return to the upper level.
- Interact with the small Saurian and follow it.
- Activate the lift.
- Return to the Altar of Primal of Flame.
Burning Firestone Location 4
The final Burning Firestone is on the northwestern island's upper level:
- Cross the northwestern bridge.
- Request Bona to adjust the bridge's incline.
- Glide to the upper level of the northern island.
- Lower the lift.
- Follow the Little One.
- Instruct it to return to the altar.
- Defeat the spawned enemy.
- Again, tell the Saurian to return to the altar.
- Collect a Precious chest.
- Go to the Altar of Primal of Flame.
Offering all four Firestones to the Altar completes The Flowing Primal Flame Quest, triggering a cutscene transforming the Jade of Return into a Golden Entreaty. The Dragon of the City of Flowing Ash then appears, leading to the Nursery of Nightmares island and the completion of The Other Side of the Sky Quest, rewarding 50 Primogems.
