TOTK Mystery in the Depths Walkthrough and Key Objectives
Exploring the subterranean landscapes of Hyrule in The Legend of Zelda: Tears of the Kingdom introduces players to unique gameplay mechanics and dark environments. Among the most crucial early missions is the Mystery in the Depths main quest, which grants players access to a game-changing building ability. This guide outlines the essential steps required to complete the objective smoothly and unlock the final key rune for Link's collection.
Initiating the Subterranean Investigation
Before you can begin this specific expedition, you must first complete the early Camera Work in the Depths quest line. Speak with Josha and Robbie at Lookout Landing to receive the new mission parameters regarding strange statues beneath the surface. They will direct you back down into the chasm where the real investigation officially takes place.
To start your descent, dive back down into the Great Plateau North Chasm to re-enter the dark realm. It is highly recommended to stock up on Brightbloom Seeds and gloom-resistant meals before making the jump. Keeping the environment illuminated will help you navigate the dangerous terrain and avoid hostile encounters effectively.
Following the Stone Statues
Once you land safely at the bottom, look around for the specific large stone statues mentioned by Josha. You will need to follow the exact direction these structures are facing to track the correct path forward. Each statue points directly toward the next landmark, forming a clear trail through the darkness.
As you move between the markers, look for the towering Lightroots scattered along the designated route. Activating these subterranean structures restores your corrupted hearts and permanently illuminates the surrounding map area. Following this network ensures you stay on the right path without getting lost in the shadows.
Discovering the Great Abandoned Central Mine
The trail of stone carvings eventually leads players directly to the impressive Great Abandoned Central Mine structure. Stepping inside this massive facility triggers a unique interaction with two mysterious researchers waiting near a pristine construct. Activating the green Zonai terminal nearby unlocks the coveted Autobuild ability instantly.
This unique rune allows you to instantly recreate saved vehicle designs and building configurations using nearby components or Zonaite pieces. To test your new skills, the game tasks you with repairing a broken carriage parked right inside the workshop. Successfully piecing the vehicle back together triggers an unexpected confrontation with an iconic recurring boss.
Defeating Master Kohga and Claiming Rewards
The leader of the Yiga Clan makes a dramatic return to challenge Link using a heavily armored custom vehicle. To win this boss encounter, use your archery skills to knock him off the driver seat when he prepares a slow attack. Once he falls to the ground, rush in with your strongest melee weapons to deal maximum damage quickly.
Repeating this simple combat strategy will quickly deplete his health bar and force him to retreat deeper into the underworld. Defeating him rewards players with a valuable Schema Stone containing helpful blueprint configurations. Speak with the remaining construct assistants to finalize your business at the mine before returning to the surface.
Concluding the Main Quest line
After successfully securing the new ability, fast travel back to the surface and report your findings to Josha. Presenting your discoveries allows you to demonstrate the power of Autobuild by fixing a broken hot air balloon right in the middle of camp. Completing this final quick objective completes the quest line and opens up additional optional side adventures down below.