guides
Last update:25 June 2019
This page ofThe Sinking Cityguide includesthe walkthrough of the Quid Pro Quo main case.
You have to determine who kidnapped professor Harriet Dough.
The completion of the investigation, however, is the same for both options.
View the history of robberies in the police archive
This case starts automatically after theLost at Seainvestigation.
You immediately receive the first two pieces of evidence -Throgmorton’s Task, andThe Fate of the Expedition.
The second of these tracks will help you start the new case.
It is necessary to obtain information about previous attacks like the one on the members of the expedition.
Get to theOakmont Police Departmentand go to thearchive.
After confirming the search, you should receivepolice Report No19-0451.
It does not immediately appear on the world map.
You must reach the Eastern part of theShellsdistrict visible in the screenshot above.
When you reach the Fish Market, findAnna, and talk to her.
Express a desire to join this organization and meet with the highest ranking members.
You will receive a new task and unlock a new piece of evidence -Anna’s Request.
Before working on the assignment, pop pop the Mind Palace.
Combine the clues- Oakmont is starvingandEOD is giving away fish -you unlock a deduction- The EOD helps prevent famine.
Explorethe Fish Market
Your new destination is theEOD Fish Storage.
The location of EOD Fish Storage - western part of Shells district.
The warehouse is located on Hawking Lane between Warren Road and Liberty Road.
Talk toDaryl Grimes, who’s standing at the entrance to the warehouse.
Exhaust also all the other dialogue options - you will unlockThe Guard’s Testimony.
Go to the warehouse and start exploring it.
You have to watch out, because at some pointmonsterswill appear in the warehouse.
In addition to the small monsters known from previous major cases, there will also belarger spitting creatures.
You will discover an illusion wall.
Let the characters match.
Go into the hidden rooms and see the instruments of torture.
Discover all the interactive areas.
You will receive a new piece of evidence- The Events in the Fish StorageandThe Guard’s Plea.
initiate the Mind Palace.
Connect clues:A mention of a professor)andLab Flask.
You unlock the deduction: The Poisoner and the University.
Go back to theFish Marketto report toAnna.
Regardless of which option you choose, exhaust all dialog options.
A visit to the University
Your new destination isOakmont University.
It is located in the northern district of the city -Reed Heights.
Discuss all topics with themanstanding in front of the (closed) main building of the University.
Go to the newly added location on the world map -Department of Medicine.
Upon arrival, start with a discussion at the reception withSamuel.
You will receiveA Key to the Lab.
On the wall next to the reception you will finda poster (EOD is Banned!).
Behind Samuel you will findammunitionand a locker with a minor loot.
Use the key and go down to the basement.
In the lab there aresmall monstersandbig creatures spitting out projectiles.
If you want to, retreat near the stairs, because the monsters can not overcome this obstacle.
There’s alsoa big red buttonin the basement.
It’s not about this investigation, it’s about unlocking theReanimatortrophy.
This fight is described in more detail in ourtrophy guide.
Do not use the button if you do not have enough first aid kits and ammunition.
He will immediately analyze the substance from the laboratory flask.
You will receiveThe Key to the Second Floor.
Find the door leading to the floor and start exploring the surroundings:
bring up the Mind Palace.
Get to the locked room and destroy the padlock with the help of melee weapons.
In the pantry, inspect the display case of laboratory flasks.
Among them, you’ll find ricin.
You should have completed this building in 100% by now.
Upon arriving there, talk to the frontdesk clerk- you may be irritable or not.
Let’s go to thearchive room.
You will receive George Cavendish profilewith hisresidence address.
George Cavendish’s Apartment
Apartment of G. Cavendishis located in theAdvent district.
This is Michael’s Road, between Carpenter Street and Constitution Street.
The entrance to the residential area is close to the flooded part of the street.
Go to the second floor.
TakeTag from the Baby Carriage.
Use melee weapons to destroy the padlock and get into the apartment ?
Explore the apartment:
Enter the blue cloud to begin the retrocognition.
The apartment is 100% investigated.
There is animportant choicefor you to make - the moment of the decision is shown in the screenshot above.
You immediately unlock some evidence -Cavendish Family Disintegration.
pop pop the Mind Palace.
You have three options:
Go back to theEOD Fish Storage.
You will another pieceof evidende:I dosed the fish with the ricin.
Exit the warehouse and get to the nearby intersection of Hawking Lane and Liberty Road.
Before you leave the apartment, use the Mind Palace.
Go back to thefish marketto tellAnnato hunt down and murder Cavendish.
The descent to the basement is in the market, to the left of the place where Anna stands.
In this situation, Reed will report on him, and EOD will learn about Cavendish’s plans.
Before you help Fred returning toThrogmorton Manor, report toRobert Throgmorton.
You will receive a prize -XP, ammunition, and a Shotgun.
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