How to trigger and complete the Lost in a Foreign Land World Quest chain in Genshin Impact

Lost in a Foreign Land is a two-part hidden World Quest that can be triggered in The Chasm's Underground Mine. The quest is located in The Glowing Narrows, which you can access as soon as you complete The Chasm Spelunkers, but it can only light up during Wherefore Did the Spiritstone Descend.

To initiate the quest, head to the exact location circled in the image below. You will be attacked by an Electro Cicin Mage named ??? (Isolated Electro Cicin Mage). Defeat her to initiate the Lost in a Foreign Land World Quest.

A dialogue with the Electro Cicin Mage will start as soon as you defeat her. She will introduce herself as Katarina. After, some Floating Hydro Fungi will appear. Defeat them, and Katarina will invite you to her hideout. Follow the quest marker to her hideout and speak with her again to complete the first part of the quest.

You need to wait one real-time day before visiting Katarina in her hideout once again. She'll tell you about a fellow Fatuus named Nikolay and will ask you to help her find him. You need to look for clues Nikolay left behind in the area marked by the quest marker.

Related: How to unlock and complete the Paleontological Investigation in The Chasm World Quest in Genshin Impact

If you're having trouble locating the clue, follow these directions:

• Start from the rightmost Teleport Waypoint in The Glowing Narrows, under Stony Halls.
• Look to your right. You will see a stone bridge.
• From the stone bridge, look ahead—you'll see an obscure cave on the right.
• Go inside the cave and interact with the glowing bag to obtain Corporal Nikolay's Diary Entry.

After, follow the quest marker to the location mentioned in Nikolay's Diary. You'll find a gate blocked by a Ruin Guard. Defeat the Ruin Guard to unlock the gate and interact with the object the quest marker is pointing to. Once that's done, head back to Katarina in the hideout to complete the World Quest.

Check out our guide on How to complete A Company Vanishing Into the Deep World Quest in Genshin Impact for another encounter with friendly Fatui in The Chasm.