Starfield Delivering Devils Walkthrough – How to Find Percival and Clear His Debt

Delivering Devils Mission Overview

Mission type: Faction mission, the third in the UC Vanguard questline
Quest giver: Commander John Tuala, MAST in New Atlantis
Location: Cydonia on Mars in the Sol system, the Deep Mines and the old Red Devils HQ
Objectives: Ask about Percival at the Trade Authority, speak to Lou at The Sixth Circle, clear Percival’s debt, get the Drill Waste Room key, find Percival in the Red Devils HQ and meet Hadrian back at The Sixth Circle
Prerequisites: Complete Grunt Work
Quest chain: Follows Grunt Work and unlocks Eyewitness

Percival is hiding on the far side of the Deep Mines, so you have to fight your way through the mines no matter how you clear his debt.

How to Start Delivering Devils in Starfield

Delivering Devils is added when you report back to Commander Tuala at MAST at the end of Grunt Work, together with Deep Cover. Hadrian wants the Terrormorph tissue sample taken to her old colleague Percival Walker, so your first stop is Cydonia on Mars.

1 – Ask About Percival at the Trade Authority

Mission Text:
“Hadrian has asked me to find her colleague, Percival Walker, on Mars. Percival was recently working with the Trade Authority there, so that seems like a natural place to check first.”

Fly to Cydonia on Mars in the Sol system. The Trade Authority branch is just after the entrance on the top level of the Cydonia Central Hub. Talk to Oktai Enbayar, who sits at the back of the office.

2 – Speak to Lou at The Sixth Circle

Mission Text:
“Turns out Percival no longer works for the Trade Authority. In fact, he owes them money. Oktai Enbayar suggested someone in ‘The Sixth Circle’ bar may know where he’s hiding.”

Take the stairs or the elevator down to the ground floor and walk into The Sixth Circle bar. A conversation starts as soon as you enter. Afterwards, speak to the bartender, Lou Saavedra.

How to Clear Percival’s Debt in Starfield

Lou only tells you where Percival is once his debt with the Trade Authority is cleared. You have three ways to do it:

Pay it yourself. Talk to Oktai at the Trade Authority and pay the full 21,867 credits. It is the fastest option, but you still have to fight through the Deep Mines later to reach Percival.

Change the debt amount. Pick the Master lock door in the Trade Authority office upstairs and change Percival’s debt on the computer inside. A Master lock needs rank 3 in the Security skill.

Do the research for Cambridge (recommended). Clear the Spacers out of the Deep Mines, finish the Hematite research and use the data to clear the debt. It takes longer, but the Deep Mines are also the way to Percival, so you clear the route in advance. You also learn how to make the Pick-Me-Up drug.

3 – Talk to Cambridge at The Sixth Circle (Optional)

Mission Text:
“Lou will only tell me where Percival is if I clear Percival’s debt first. But it also seems someone else in the bar wants my attention.”

A man called Cambridge is standing in the bar. Talk to him and he offers you another way to clear the debt: finish some research for him in the Deep Mines. This is the better route, because you have to go back to the Deep Mines after the debt is cleared anyway.

If you would rather pay the debt yourself, skip ahead to step 9.

4 – Change Percival’s Debt Amount on the Trade Authority Computer (Optional)

Mission Text:
“I’ve got three options to clear Percival’s debt: pay it myself, break into the Trade Authority to reduce the amount, or clear out the Deep Mines and collect some research for Cambridge.”

Go back to the Trade Authority and head up to the office upstairs. Pick the Master lock door. The computer inside lets you change Percival’s debt amount. Once the debt is cleared, continue with step 10.

5 – Kill the Spacer Leader in the Deep Mines (Optional)

Mission Text:
“I’ve got three options to clear Percival’s debt: pay it myself, break into the Trade Authority to reduce the amount, or clear out the Deep Mines and collect some research for Cambridge.”

Leave Cydonia for the surface of Mars and follow the mission marker to the Abandoned Mines. You enter the mines from inside the building. Clear out all the Spacers.

Keep fighting all the way down. The Spacers are spread deep into the mines.

Once they are all dead, contact Cambridge on the comms panel. The mission marker leads you to it, inside a room called Material Analysis.

6 – Deposit the Hematite in the Thresher (Optional)

Mission Text:
“Hematite acquired. Now I just need to deposit it in the Thresher.”

Hematite is the ore on the walls of the mine. Open your scanner and mine the nodes. The Thresher is in the same lab as the comms panel. Put the Hematite inside, wait for the analysis to finish and collect it. Then talk to Cambridge on the intercom again.

7 – Get the Employee Exit Key (Optional)

Mission Text:
“Cambridge has informed me there’s a faster way out of the mines – the elevator in this room. He says there should be a key stashed away in the Thresher room.”

The Employee Exit Key is lying on top of the Thresher. Use it on the elevator in the same room to ride up to the surface of Mars.

8 – Return the Data to Cambridge (Optional)

Mission Text:
“Time to return this research to Cambridge back at ‘The Sixth Circle.'”

Head back to The Sixth Circle in Cydonia and hand the research over to Cambridge.

9 – Clear Percival’s Debt at the Trade Authority

Go back to the Trade Authority and talk to Oktai Enbayar at the back of the office. Either pay the debt yourself or use Cambridge’s data to clear it.

10 – Get the Drill Waste Room Key From Lou

Mission Text:
“I did it! I’ve cleared Percival’s debt. Now I should be able to get his location from Lou at ‘The Sixth Circle.'”

Head back down to The Sixth Circle and talk to Lou. He gives you the Drill Waste Room Access Key, which opens the way through the Deep Mines to Percival.

11 – Find Percival in the Red Devils HQ

Mission Text:
“Lou says I can find Percival in the old Red Devils Headquarters. He gave me a key that will allow me to get through the Deep Mines to reach it.”

Head back into the Deep Mines. Deep down, past the Material Analysis room, is a locked door that only opens with the Drill Waste Room Access Key from Lou.

Go through the door on the other side into a windy cave. Jump over the chasm or walk around it on the left, then cross the cavern.

On the way you reach a massive structure. That is where you find Percival. Follow him to the Red Devils HQ.

Wait for the sample analysis to finish. Percival gives you the Red Devils elevator key.

12 – Meet Hadrian at The Sixth Circle

Mission Text:
“Percival analyzed the sample and confirmed Hadrian’s suspicion – it’s just like the one from Londinion – a city destroyed by Terrormorphs. Now we just need to make our way back to ‘The Sixth Circle’ to speak with Hadrian.”

Take the elevator up to the surface of Mars and return to The Sixth Circle to meet Hadrian. Follow her to a more private room. After the conversation, Delivering Devils is complete and the next UC Vanguard mission, Eyewitness, starts.