As a seasoned Traveler exploring the fiery landscapes of Natlan in Genshin Impact's Version 5.6, I've been utterly captivated by the region's hidden mysteries—especially the enigmatic Secret Source Servants. One particular companion, Ehecatl, isn't just a helpful guide; its discarded shell holds the key to a jaw-dropping hidden chamber and a cheeky achievement. Let me walk you through every step, 'cause trust me, this is one adventure you don't wanna sleep on!

🔥 Starting the Journey: Frozen, Rekindling Land Quest

To even access this treasure hunt, you gotta kick things off with the Frozen, Rekindling Land World Quest. Head over to the Ancient Sacred Mountain—specifically starting from the "Collective of Plenty" area—and make your way to the Skyfire Circlet. Here’s the scoop: only by progressing through this questline will you unlock the colossal gate to the ancient city. And guess who helps you? Our robotic buddy Ehecatl!

When you hit that locked door, interact with the motionless Secret Source Servant stationed there. Ehecatl springs to life like a caffeinated clockwork, blabbering about destiny before swinging open the door to the Summoning Hall. Poof! The entire Ancient Sacred Mountain map lights up, revealing paths you’d swear weren’t there a minute ago.

Right after this grand entrance, Ehecatl conks out near the hall’s central mechanism. Don’t just stand there gawking—grab its empty shell! This becomes the quest item "That Which Was Once Ehecatl," chilling in your Inventory under the Quest tab. Felt bittersweet, honestly… like adopting a pet robot’s ghost.

💎 Obtaining the Item: Quick Recap

1. Begin Frozen, Rekindling Land at Collective of Plenty.

2. Traverse to Skyfire Circlet and find the locked door.

3. Chat up Ehecatl to open the Summoning Hall.

4. Collect its shell after it powers down.

🗝️ Using That Which Was Once Ehecatl: The Big Reveal

Now for the fun part! Teleport to the Fallingstar Fields waypoint and bolt southeast toward some crumbling ruins. If the door’s still sealed (likely ’cause you skipped The Way Into the Mountain quest), scoot left to find a sneaky hole in the ceiling—ye olde parkour route! Drop down, fiddle with the mechanism inside, and boom, access granted.

Venture deeper into the ruins until an ornate altar glimmers ahead, guarded by a pesky squad of Tenebrous Mimiflora. Whip out your strongest team—I used Pyro Traveler and Escoffier for max burn—and clear 'em out. Then, approach that shiny altar spot and plop down That Which Was Once Ehecatl. Cue the dramatic clunk of a hidden door rumbling open!

Inside lies a secret room stacked with goodies:

• ✨ 1 Luxurious Chest (potentially drops rare Sunset-Blue Obsidian Ring)

• 💰 3-4 Ember Mora Chests

• 🏆 Achievement unlocked: "Why Is It Always A Statue Mechanism?" —Hoyo knows we’ve seen too many of these!

🌋 Why This Rocks for Resource Grinders

Natlan’s new materials are no joke, and that Sunset-Blue Obsidian Ring? Pure gold for forging weapons like Earth Shaker or Ring of Yaxche. Here’s a quick table of loot priorities:

Item	Use	Drop Rate in Area
Sunset-Blue Obsidian Ring	Weapon ascensions	Rare (Precious/Luxurious Chests only)
Ember Mora	Mora & artifact XP	Common
Obsidian Fragments	Sanctifying Elixir crafts	Moderate

❓ People Also Ask

• Where exactly is the Fallingstar Fields waypoint?

Southwest of Atocpan, nestled in the Tezcatepetonco Range. If you haven’t unlocked it, follow the Pyroculus trail!

• Can I use Ehecatl’s shell before finishing Frozen, Rekindling Land?

Nope! The quest gates both the item and ruin access—no shortcuts here, pal.

• What’s the fastest team to beat the Tenebrous Mimiflora?

Crowd-control + Pyro shred. I ran Ifa for grouping and Pyro Traveler for overloads. Melt comps? Chef’s kiss 👌.

💬 Wrapping Up: More Than Just Junk in the Trunk

Honestly, stumbling into that hidden room gave me goosebumps—it’s these lil’ oh dang moments that make Natlan feel alive. Between the Saurian transformations and Sanctifying Elixir crafts, Version 5.6’s layers keep unraveling. But hey, with Ehecatl’s story wrapped up… what other forgotten servants are lurking beneath these lava flows? Spill it, Travelers: what’s the wildest secret you’ve dug up in Natlan’s ashes?