The Wigling Hill Ruins in the Crimson Desert contain a puzzle that can only be solved with the Wind Curtain skill, which allows you to rotate certain mechanisms to drain the waterways. The Abyss Stone is located in Demeniss, southeast of the Crimson Wall (The Crimson Wall on the map).
Wigling Hill Ruins Puzzle Location
Teleport to the Abyss Stone west of Demeniss if you’ve already activated it. Ride your horse north toward the farmland. Cross the river, turn right, and head toward the Crimson Wall (The Crimson Wall on the map). Continue until you see a gap between two mountains. Dismount and walk between the mountains. Approach the Abyss Stone near the water.
How to solve the puzzle in the Wygling Hill ruins
Stand next to the wooden device in the water, next to the Abyssal Stone. Activate the “Focus” skill, then hold right-click to activate the “Wind Curtain” ability. You’ll need to unlock it first by spending Abyssal Artifacts. Look for it at the end of the green branch of the skill tree. Maintain a safe distance from the device to avoid damage. Repeat this process until the water recedes completely.

After draining the water, you need to find and light five lanterns. Lighting them is simple: just approach them and interact with them using the on-screen command. There shouldn’t be any additional items. On PC, press and hold the E key for a few seconds.

Lantern No. 1
Climb up to the small, broken patch of ground to find the first lantern. Approach it and hold the interaction key/button.
Lantern No. 2
Go south from the first lantern to find the second one.
Lantern No. 3
Turn north, then go behind the broken wall to find the third lantern.
Lantern No. 4
The next lantern is north of the rotating device you activated with Wind Curtain. Face north, approach, and turn on the lantern.
Lantern No. 5
Continue north from the previous lantern until you see a lantern near a broken stone pillar. Approach it and light it.
Once all the lanterns are lit, the puzzle in the Wigling Hill Ruins will be complete. You’ll be able to loot the Abyssal Artifact from the Abyssal Stone, and the Stone itself will become a convenient fast travel point.