The First Descendant

Mystery's End Mission Walkthrough and Rewards

Beginner's Guide and Advanced Tips and Tricks
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Season 1 | New Update
★ New Characters: Hailey and Ultimate Freyna
☆ Season Guides: Battle Pass | Invasion Guide | ETA-0
☆ New Void Interception: Death Stalker
☆ New Weapon: Frost Watcher

The First Descendant - Mystery

Mystery's End is a mission in The First Descendant. Read on for a full walkthrough of Mystery's End, its location, rewards, and how to beat Non-smiling Agonia.

Mystery's End Location

White-night Gulch


White-night Gulch (Moongrave Basin)

Mystery's End Walkthrough

Mystery's End Objectives

Mystery's End Objectives
1 Occupy the Zone while connecting Arche to the Ruins system.
2 Manuever around the laser obstacles.
3 Defeat Non-smiling Agonia

Occupy the Zone While Connecting to the Ruins System

The First Descendant - Mystery

Make your way to the core of Mystery's End and occupy the area until Arche connects to the Ruins system. You will have to stay inside the circle for the duration of the process.

Use Grappling Hook to Jump Over the Laser Beams

The First Descendant - Mystery

There will be an area with multiple laser beams blocking your way. Use your grappling hook on the wall above you to jump over them. You may have to use the hook again mid-air to reach the other side.

Take Turns Crossing the Platform

The First Descendant - Mystery

After going past the lasers, you will have to jump on the platforms to get to the next area. If you have a team with you, make sure to take turns jumping between platforms, otherwise you might end up blocking one another and end up falling down the pit.

Defeat Non-smiling Agonia

The First Descendant - Non-smiling Agonia

At the final area of the Mystery's End, you will have to defeat Non-smiling Agonia. She is both a melee and range user that utilizes the element of water to strike you down from long-range by raining down water missiles from the sky.

How to Beat Non-smiling Agonia

How to Beat Non-smiling Agonia in Mystery's End

How to Beat Non-smiling Agonia

Avoid the Water Missiles

The First Descendant - Non-smiling Agonia Water Missiles

Non-smiling Agonia will occassionally call down water missiles from the sky. Try to avoid them by keeping an eye out for light blue circles on the ground, as these indicate where they will land.

Defeat the Enemies Linked to Her

The First Descendant - Non-smiling Agonia Invulnerable

Once you see several enemies around Non-smiling Agonia that are seemingly connected to her via white lines, be sure to kill all of them to remove her invincibility.

Mystery's End Rewards

All Mystery's End Rewards
・Super Senses (1.8%)
・Shape Stabilizer Form 6 (2%)
・Toxic Conductor (3.5%)
・Blair Enhanced Cells (20%)
・Reload Insight (22.5%)
・Focus on Singular (22.5%)
・Burning Singularity Reactor (50%)
・Burning 44 (50%)
・The Last Knight (50%)
・Tingling Phase Reactor (50%)
・Amorphous Material Pattern 036 (100%)

The First Descendant Related Guides

The First Descendant - Main Quests.png

Main Quest Walkthrough

All Mission Types

Zone Recon Calling of the Descendant

Kingston Missions

Field Communications Center Urban District The Last Emergency Communicator
Kingston Communications Repeater Vulgus Field Generator Magister Lab
Suspicious Battery Pack Vulgus Data Transmitter Kingston Surveillance Radar
Slumber Valley

Sterile Land Missions

Anticipated Ambush Point Deception Transmitter Patrol Route
External Reactor Kuiper Mine Kuiper Refinery
Kuiper Storage Tank The Barracks The Base's Power Grid
Defense Garrison Rally Point High-powered Jammer The Forgottense
Logistics Facility Wastewater Treatment Plant Weapon Processing Facility
Large Nuclear Reactor Biological Research Facility Weapons Engineering Facility
Unknown Laboratory

Vespers Missions

Lakeside Floodplain Old Surveillance Station
Ruins Courtyard Ruins Underground Entrance Destroyed Temple
Captured Base Abandoned Village Mossy Colossus
Sepulcher Ancient Giant Tree Supply Depot
Timberfall Power Facility Organic Recording Material The Shelter

Echo Swamp Missions

Arche Motion Sensor The Tree of Truth Environment Contamination Zone
Abandoned Refinery Unit Seed Vault Hazy Swamp
Traces of Colossi Interceptions Kuiper Transport Route Verdant Greenery
Field Energy Station Emergency Landing Strip Ghost Marsh
The Chapel

Agna Desert Missions

Baggage Transport Waste Rock Cave Base Surveillance Location
The Asylum Outpost Workshop Abandoned Reconstruction Site
Stolen Spectral Digger Kuiper Depot Previous Construct Team Quarters
Excavation Team Directional Radar Ossuary Mining Beacon
Caligo Ossuary Heavy Equipment Entry Path Commanding Ground

White-night Gulch Missions

Order's Patrol Beat Decoy Operation Zone Triumphal Arch
Ancient Transmission Detection Facility Borderline of Truth Cave Rally Point
Water-Cooling Recording Device Forgotten Comms Device Deployment Area of the Order's Forces
Mystery's End Order's Veil Order's Occupied Facility
Eye of Truth Order Supply Warehouse Fortress Outskirts
Fortress Control Facility Fortress Courtyard DNA Detector Spray Zone
Altar Upper Hatchery Lower Hatchery
Bio-Lab

Hagios Missions

Vulgus Blockade Recon's Squad Trail Ally Retreat Route
Ransacked Village Crimson Contaminated Area Deep Digger
The Haven Large Supply Transport Point Ruins Modification Base
The Cliff Cargo Management Zone Broadband Fleet Beacon
Antiaircraft Defensive Position The Passage to the Ruins Ancient Quantum Facility
Ruins Guard Facility Tethered Energy Position Old Mystery

Fortress Missions

Outlying Communications Facility Snowy Heights Gate System Control Network
Munitions Loading Dock Command Relay Ship Charging Facility
Frozen Shipyard Quarantine Zone Giant Hangar
High-Thermal Source Detected Zone Central Control Unit Destroyed Base
Explosive Debris Fortress Command Entrance Heart of the Fortress

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