The Outer Worlds: Errors Unseen Walkthrough Guide

Q: How to find Catherine in Fallbrook?

This quest involves investigating a secret corporation on Monarch. You'll need to find Catherine in Fallbrook, then either pass a difficult Lie check or talk to Huxley in Amber Heights to get the location of the corporate compound. Navigate a trap-filled tunnel, secure evidence from the UDL Lab, and deal with marauders.

Q: How to get Chastity's Hideaway Key?

This quest involves investigating a secret corporation on Monarch. You'll need to find Catherine in Fallbrook, then either pass a difficult Lie check or talk to Huxley in Amber Heights to get the location of the corporate compound. Navigate a trap-filled tunnel, secure evidence from the UDL Lab, and deal with marauders.

Q: Where is the UDL Lab in the outer worlds?

This quest involves investigating a secret corporation on Monarch. You'll need to find Catherine in Fallbrook, then either pass a difficult Lie check or talk to Huxley in Amber Heights to get the location of the corporate compound. Navigate a trap-filled tunnel, secure evidence from the UDL Lab, and deal with marauders.

Q: How to deal with marauders at UDL Lab?

This quest involves investigating a secret corporation on Monarch. You'll need to find Catherine in Fallbrook, then either pass a difficult Lie check or talk to Huxley in Amber Heights to get the location of the corporate compound. Navigate a trap-filled tunnel, secure evidence from the UDL Lab, and deal with marauders.

Q: What skills are needed for Huxley?

This quest involves investigating a secret corporation on Monarch. You'll need to find Catherine in Fallbrook, then either pass a difficult Lie check or talk to Huxley in Amber Heights to get the location of the corporate compound. Navigate a trap-filled tunnel, secure evidence from the UDL Lab, and deal with marauders.

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Walkthrough

1
Find Catherine in Malin’s House of Hospitality in Fallbrook (southeast Monarch). Say, “Sanjar said you know something about a corporation operating in secret on Monarch.”
2
If you can pass a [Lie 100] check: Call Catherine out and talk to her bartenders. Westley Alexander downstairs refers you to Yvonne Brennan upstairs, who refers you to Huxley in Amber Heights.
3
If you cannot pass [Lie 100] or want to be thorough: Search north of Fallbrook. Follow the road northeast from Fallbrook Crossroads until you encounter marauders. Veer northwest into the wilderness, under a broken bridge, to find the Blown Bridge fast travel point.
4
Look for signs of battle and loot an overturned loader for a blood trail.
5
Follow the blood trail southwest, then northwest, then north to find a hatch leading to the Smuggler Tunnel (hidden amidst rocks northwest of the loader).
6
Navigate the Smuggler Tunnel, avoiding laser tripwires and mines. Shoot mines and duck/jump over tripwires. Detonating mines may disable tripwires.
7
At the end of the tunnel, talk to Arthur, a SubLight thug. You can optionally pass a [Medical 40] check to help him and gain SubLight reputation.
8
Learn from Arthur that marauders ambushed them and likely know the corporate compound's location.
9
To find the corporate compound (UDL Lab): It's northwest of Fallbrook and west of Amber Heights. If you spoke to Arthur or Huxley, you'll have map markers.
10
From the Blown Bridge fast travel point, head west, northwest towards a pond. You can find a locked bin ([Lockpick 95]) here.
11
Continue north, northwest, kill mantids, then turn northwest to reach the UDL Lab. You'll overhear chatter confirming marauders know the location and that corporate workers won't survive.
12
Dealing with the UDL Lab:
- Kill all marauders. Use tall grass for sniping, especially targeting isolated high-ground enemies.
13
Sneak past them, sniping key targets. Many enemies are inside the northwestern-most building.
14
Flip an alarm: Sneak to the northwestern-most building and find a terminal on the northern corner ([Hack 54]). If you have Chastity’s Hideaway Key from Huxley, you can access it without the skill check. Select [Activate Alarm] to make most marauders leave.
15
If you didn't pass [Lie 100] with Catherine or want info from Huxley: Head to Amber Heights and talk to Huxley. You need to have found and freed her during BOLT with His Name.
16
Ask Huxley about Chastity. You can pass a [Persuade 100], [Intelligence], or [Intimidate 55] check, or bribe her (500 Bits).
17
Huxley will mark Chastity’s Hideaway on your map and give you Chastity’s Hideaway Key, which opens a gate north of the installation. (Note: It's easier to access the installation from the south).

Tips

The [Lie 100] check with Catherine is difficult but bypasses the need to find Huxley.
If you choose to go through the Smuggler Tunnel, be very careful with the numerous mines and traps.
Using the alarm at the UDL Lab is an effective way to clear out most enemies with less direct combat.
Huxley's Hideaway Key provides an alternate entry point, but accessing the UDL Lab from the south is generally easier.

Experience Points
SubLight Reputation (if you help Arthur)
Progress in the main questline or faction questline.

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