General remarks
- For most of the game, your objective is to open doors.
- Use the
RECALL DOORS
command (or justDOORS
) to get a list of doors to open. - Use
RECALL ROOMS
(or justROOMS
) to get a list of rooms you’ve visited. - Look at the map included with the game. (The map is intended to be read during play; it’s not a spoiler.)
- Review the special commands for Hadean Lands, e.g.
RESET
,PERFORM
,CREATE
,GO TO [OBJECT]
,RETURN
,RECALL THINGS
.
- Use the
- Your objective is not to perform rituals or to find ingredients, except so as to open a particular door.
- Generally speaking, you should not ask yourself “I know I need ingredient X. Where should I look for it?” The ingredients are all over the ship in random places, so this line of thinking won’t help.
- There is one major exception for what I’m calling the “Big Ritual.” (You’ll probably know which ritual I mean when you see it.) It is your objective to perform that ritual.
- Also, there’s one ingredient that is extremely hard to find, the word of emulgence. Its location is discussed in the “Big Ritual” section.
- I’ve divided this walkthrough into seven parts:
- Doors: The First Part
- Doors: After Reaching the Nave
- Goal: The Big Ritual
- Doors: After the Big Ritual
- Goal: Fixing the Dragons
- Doors: After Fixing the Dragons
- Goal: After Fixing the Dragons
- The doors/goals are sorted in a solvable order. If you open the doors in this order, even if you never reveal any actual hints, you’ll never be stuck on one puzzle waiting for another puzzle.
- Therefore, a good way to use this guide is to type
DOORS
, then scroll down until you find a door that you haven’t opened yet, or a Goal you haven’t accomplished yet.
- Therefore, a good way to use this guide is to type
- This game is very big. If you play it over a period of weeks or months, you may have forgotten something important you’ve encountered earlier in the game. If you’re stuck on a late-game puzzle, rather than heading straight for the hints, it might make sense to save your game and
RESTART COMPLETELY
and just replay the game based on your notes, up to the point where you left off. This may refresh your memory of stuff you’ve overlooked, and give your brain a chance to catch up and work on the puzzle you’re stuck on.
Doors: The First Part
Secondary Alchemy Lab hatch
This is the first puzzle in the game; the game can help you solve it with TUTORIAL ON. Also be sure to EXAMINE everything in this room.
You’ll need to use a magic ritual to get out of this room.
You only have the ingredients for one ritual, basic tarnish cleansing, but it doesn’t work on the steel hatch. You’ll have to improvise.
Modify the tarnish cleansing ritual to remove rust from steel instead of tarnish from brass.
Repeat the ritual, but instead of putting a brass token in the bound at the start of the ritual, put a steel token in the bound instead.
If you examine the bench, you’ll find a steel bolt underneath.
PUT THE STEEL BOLT IN THE BOUND. OPEN GINGER. SAY SIMPLE. SAY ESSENTIAL. WAVE ROSEMARY. and SAY LESSER. GET BOLT. TOUCH HATCH WITH BOLT.
Mechanica Lab hatch
PERFORM RUST. TOUCH HATCH WITH BOLT.
“This hatch is going to require something stronger.”
Explore all of the rooms that you can now access, including Crawlspace Bend, Chem Lab Crawlspace, and Herbarium. Also be sure to try going south from the Mech Lab Crawlspace, just to see what that does.
You’ll need to use the Doubled Tarnish Cleansing Inscription (with the steel bolt, instead of the brass pin, of course).
Use the pinecone from the Herbarium.
GO TO THE SECONDARY LAB. PUT THE BOLT IN THE BOUND. OPEN GINGER. SAY SIMPLE. SAY ESSENTIAL. CRUSH PINECONE. SAY LESSER. GET THE BOLT. GO TO THE CRAWLSPACE. TOUCH HATCH WITH BOLT. GO UP.
Herbarium hatch
This isn’t a puzzle! OPEN THE HATCH in the Crawlspace Bend, and GO DOWN.
Mechanica Lab cabinet
Be sure to examine everything here in the Mechanica Lab and in the Materials Store next door to the west.
Even the Doubled Tarnish Cleansing ritual won’t open this cabinet, but the Universal Tarnish Cleansing ritual, from the crumpled sheet in the Materials Store, will open this cabinet.
-
How do I create a catalytic environment?
RECALL CATALYTIC ENVIRONMENT.
You’ll need platinum wire.
-
Where do I get platinum wire?
Examine everything in the Mechanica Lab.
The wire-drawer is designed to turn rods into wire, and there’s a platinum rod right here.
PUT THE PLATINUM ROD IN THE WIRE-DRAWER. TURN THE CRANK.
Once you have platinum wire, you can create a catalytic environment like this: GO TO THE MATERIALS STORE. PUT PLATINUM WIRE IN THE BOUND.
-
-
Where do I find Java spirit?
You’ll need to examine everything, including all of the objects you’ve seen lying around. The object you need might even be in your inventory.
Java spirit is in the Chem Lab Crawlspace, north of the Crawlspace Bend.
The lubanja is the Java spirit.
GO TO THE MATERIALS STORE. PUT PLATINUM WIRE IN THE BOUND. PUT THE BOLT IN THE BOUND. SAY SIMPLE. SAY CATEGORICAL. PUT JAVA IN THE BOUND. SAY LESSER. GO TO THE MECHANICA LAB. TOUCH THE CABINET WITH THE BOLT. OPEN THE CABINET.
Chymic Lab hatch
You can’t open this hatch until you’ve opened the Mechanica Lab cabinet.
EXAMINE THE LOCK. OPEN THE LOCK.
You have the combination, from the torn sheet in the Mechanica Lab. RECALL THE COMBINATION.
SET THE DIAL TO MARS. SET THE DIAL TO LUNA. SET THE DIAL TO JUPITER. GO UP.
Mechanica Lab door
You can’t open this door until you’ve opened the Chymic Lab hatch and entered the Chymic lab.
The door is covered in mold. You’ll need to use a ritual to fix it.
Mold is a kind of fungus.
You’ll need to perform the Fungicide ritual, which you found in the Mechanica Lab cabinet.
-
How do I perform Fungicide Synthesis?
Everything you need is nearby. GO TO THE MUSTARD. GET MUSTARD. GO TO THE FUNGUS. GET IT. GO TO THE SALINE. GET IT. GO TO THE RETORT.
READ THE SIGN in the Chymic Lab.
PUT SALINE AND MUSTARD AND FUNGUS IN THE RETORT. SAY HERMETIC. TURN ON THE HEAT. WAIT. WAIT. SAY ANTIPATHY.
PERFORM FUNGICIDE. GO TO THE MECHANICA LAB. PUT FUNGICIDE ON THE DOOR. GO NORTH.
Materials Store cabinet
You can’t open this cabinet until you have opened the Mechanica Lab door.
Now that you’ve opened the Mechanica Lab door, pick up and examine everything you can find in the new rooms you can access: Lab Hall Southwest, Lab Hall Northwest, Lab Hall Northeast, Lab Hall Southeast, Library, Main Store, Storage Nook, Pyrics Lab, Pyrics Store, Opticks Lab, and Opticks Annex.
EXAMINE THE CABINET in the Materials Store.
You need an Alchemy File seal to open this cabinet. You’ve seen one recently.
The Alchemy File seal is in the Storage Nook, west of the Main Store.
GO TO THE STORAGE NOOK. GET THE SEAL. GO TO THE MATERIALS STORE. UNLOCK THE CABINET WITH THE SEAL. OPEN THE CABINET.
Lab Wing fire door
Now that you’ve opened the Mechanica Lab door, pick up and examine everything you can find in the new rooms you can access: Lab Hall Southwest, Lab Hall Northwest, Lab Hall Northeast, Lab Hall Southeast, Library, Main Store, Storage Nook, Pyrics Lab, Pyrics Store, Opticks Lab, and Opticks Annex.
GO TO THE PYRICS LAB. EXAMINE THE KEY.
You’ll need to get that key, using a ritual.
You’ll need to perform the Fire-Resistance Synthesis to get it.
-
How do I perform the Fire-Resistance Synthesis?
RECALL AROMAS.
You need saline, ginger, and peppermint.
GO TO THE SALINE. GET IT. GO TO THE GINGER. GET IT. GO TO THE MINT. GET IT. CLOSE GINGER. CLOSE MINT.
PUT SALINE IN THE BOUND. SAY SIMPLE. OPEN THE GINGER. SAY COUNTERBALANCE. CLOSE THE GINGER. OPEN THE MINT. SAY ELEMENTARY.
PERFORM FIRE-RESISTANCE. GO TO THE KILN. DRINK THE POTION. GET THE KEY. GO TO THE LAB WING. GO WEST.
Doors: After Reaching the Nave
At this point, make sure you’ve examined everything in all the rooms that you can directly reach after you’ve opened the Lab Wing fire door. East Side Hallway, Airlock, Medical Wing hallway, Nave, Portico, West Side Hall, Scaphe Arcade, Exoscaphe Hull, Quarters Access, Scrubs Country, Under Ward, Study Room, Junior Quarters, Deck Suite, Master Rector’s Quarters, High Tower, Grand Stair (Top and Bottom), Cracks, Edge of Chasm, Chasm Rubble, and Chasm (at Bridge).
Airlock inner door
This isn’t a puzzle! Just GO NORTH from the East Side Hallway.
Junior Quarters cabinet
You can’t open this cabinet until you’ve opened the Materials Store cabinet.
Read the broad sheet in the Junior Quarters.
You’ll have to perform the Gold Ignition ritual.
-
How do I perform Gold Ignition?
You’ll need the phlogisticated gold rod, a camphrost lump, blackwood, and the crock. GO TO THE GOLD ROD. GET IT. GO TO CAMPHROST LUMP. GET A LUMP. GO TO THE BLACKWOOD. GET IT. GO TO THE CROCK.
Burning the blackwood is a bit of a problem.
-
How do I burn the blackwood?
The kiln isn’t hot enough to burn the blackwood.
You’ll have to burn something else, then use that to burn the blackwood.
Try burning the splints here in the Pyrics Lab.
BURN THE OAK. BURN THE BLACKWOOD WITH THE OAK.
PUT THE GOLD ROD AND THE LUMP AND THE BLACKWOOD IN THE CROCK. CLOSE THE CROCK. WAIT. WAIT.
-
PERFORM GOLD IGNITION. GO TO JUNIOR QUARTERS. BURN THE CORD WITH ELEMENTAL FIRE. OPEN THE LOCKER.
Exoscaphe cabinet
You can’t open this door until you’ve opened the Junior Quarters cabinet.
This is the same kind of cord you saw in the Junior Quarters.
PERFORM GOLD IGNITION. GO TO THE EXOSCAPHE HULL. BURN THE CORD WITH ELEMENTAL FIRE. OPEN THE CABINET.
Deck Suite Aithery door
This isn’t a puzzle! GO EAST from the Deck Suite.
Deck Suite Alchemy door
This isn’t a puzzle! GO SOUTH from the Deck Suite.
High Tower cabinet
You can’t open this cabinet until you have the resonant oculus. (The oculus ritual is on a sheet of paper north of the Mechanica Lab.)
-
How do I perform the Resonant Oculus Creation ritual?
The glass loop is in the Mechanica Lab. You need to create a lunar environment.
-
How do I create a lunar environment?
Use a device for setting environmental influences.
EXAMINE THE ROTOR CARD in the Library.
TURN THE CARD a few times.
TURN THE CARD TO THE MOON.
You’ll need a bound with a gestalt shelf, like the one in the Nave or the Opticks Annex.
PUT THE CARD ON THE SHELF.
PUT THE LOOP IN THE BOUND. SAY SIMPLE. SAY RESONANT. SAY COUNTERBALANCE.
-
You can’t open this cabinet until you’ve uncovered some memories with the oculus.
-
How do I uncover memories with the oculus?
Explore the rooms again, examining stuff with the oculus. (Use the ROOMS command to see a list of rooms you’ve visited.)
While you’re carrying the oculus, certain rooms have a random percentage chance of revealing a spark. “Odd. You notice a spark in the oculus, as if it were reflecting some light not present.”
When you see the “Odd” message, you can EXAMINE THE SPARK WITH THE OCULUS. Then you can EXAMINE THE SPARK (again) for more detail.
Keep doing this until you’ve found two sparks and examined them for detail, then use the ROOMS command again. It includes a new hint, “The following rooms still need to be checked with the oculus for sparks.” You can search for sparks with “LOOK THROUGH OCULUS.”
In the next hint, I’ll tell you exactly where you can go to find sparks before the “big ritual.”
Opticks Annex, Opticks Lab, Storage Nook, East Side Hallway, Study Room, Master Rector’s Quarters, Chasm (at Bridge), Cracks
If you’ve finished uncovering memories with the oculus (use the ROOMS command to check), you now have a ritual that you can use to open this cabinet. (In the next hint, I’ll tell you which ritual and where to find it.)
LOOK THROUGH THE OCULUS in the Storage Nook to reveal a magenta spark, containing the Dispersal Brush ritual. You can use that to open this cabinet.
-
How do I perform the Dispersal Brush ritual?
You’ll need the feather from the Opticks Annex and the alcohol from the Secondary Lab Crawlspace. GO TO THE FEATHER. GET IT. GO TO THE ALCOHOL. GET IT.
PUT THE FEATHER IN THE BOUND. SAY SIMPLE. PUT ALCOHOL IN THE BOUND. SAY CULMINATION.
PERFORM DISPERSAL BRUSH. GO TO HIGH TOWER. TOUCH THE CABINET WITH THE BRUSH. OPEN THE CABINET.
Observatory door
Make sure you’ve examined everything in all the rooms that you can directly reach after you’ve opened the Lab Wing fire door. East Side Hallway, Medical Wing hallway, Nave, Portico, West Side Hall, Scaphe Arcade, Exoscaphe Hull, Quarters Access, Scrubs Country, Under Ward, Study Room, Junior Quarters, Deck Suite, Master Rector’s Quarters, High Tower, Grand Stair (Top and Bottom), Cracks, Edge of Chasm, Chasm Rubble, and Chasm (at Bridge).
You can’t open this door from the Paper Garden. You have to open it from the inside.
Look at the map of Hadean Lands, included with the game. (The map is intended to be read during play; it’s not a spoiler.)
There’s another way into the Observatory, via an underwater passage.
GO TO THE SCAPHE ARCADE. GO DOWN. GO SOUTH.
You can’t go south from the Arcade Crawlspace because you can’t hold your breath that long.
You have a ritual about this.
Perform the Breath-Holding Synthesis.
-
How do I perform the Breath-Holding Synthesis?
You’ll need an aroma to create an exhilirant environment, a paten of exhilirant symbolism, the Anodyne Evocation from a sheet in the Opticks Annex, saline from the Chymic Lab, elemental wood from the Pyrics Lab, and the torch-lighter from Under Ward (to burn the wood).
-
How do I create an exhilirant environment with aroma?
RECALL AROMAS.
“Exhilirant” doesn’t mean “exhilirating” in this context, but “exhaling.”
“Seaweed has… something to do with breath.”
RECALL SEAWEED.
The impet of kelp (aka seaweed) is in the Deck Suite.
-
How do I find a paten of exhilirant symbolism?
You’ve only seen one paten so far, in the kiln in the Pyrics Lab. EXAMINE THE PATEN.
“Exhilirant” doesn’t mean “exhilirating” in this context, but “exhaling.”
“This is a palm-sized porcelain disc, painted with feathers and the Chinese sign for breath.” This paten is the one you need.
OPEN THE KELP. SMELL. PUT THE PATEN ON THE SHELF. PUT SALINE IN THE BOUND. SAY SIMPLE. SAY ANODYNE. PUT ELEMENTAL WOOD ON PATEN. BURN ELEMENTAL WOOD WITH THE TORCH-LIGHTER. SAY ELEMENTARY.
-
GO TO THE SCAPHE ARCADE. DRINK THE POTION. GO DOWN. GO SOUTH. GO UP. OPEN THE DOOR. (Going through this passage can damage some inventory items; you can drop them in the Scaphe Arcade before going through.)
Deep Stacks door
You may find it easier to open this door after you’ve opened the Materials Store cabinet.
Make sure you’ve examined everything in all the rooms that you can directly reach after you’ve opened the Lab Wing fire door. East Side Hallway, Airlock, Medical Wing hallway, Nave, Portico, West Side Hall, Scaphe Arcade, Exoscaphe Hull, Quarters Access, Scrubs Country, Under Ward, Study Room, Junior Quarters, Deck Suite, Master Rector’s Quarters, High Tower, Grand Stair (Top and Bottom), Cracks, Edge of Chasm, Chasm Rubble, and Chasm (at Bridge).
EXAMINE THE DOOR.
This door is locked with a Venture File padlock. You’ll need a Venture File seal to open it.
You won’t find a Venture File seal anywhere.
You can find a Venture File mold in High Tower. Use it to make a Venture File seal.
-
How do I make a Venture File seal?
Seals are made out of metal.
You’ll need to melt some metal and put it into the Venture File mold.
Use a metal that melts at low temperatures. (Not rutilum, which is what the Alchemy File seal is made of.)
Lead melts at low temperatures.
PERFORM FIRE-RESISTANCE. GO TO THE LEAD ROD. GET IT. GO TO THE KILN. DRINK THE POTION. PUT THE VENTURE MOLD IN THE KILN. PUT THE LEAD ROD ON THE VENTURE MOLD. GET THE VENTURE MOLD. GO TO THE DEEP STACKS DOOR. GO TO THE CHASM. GO SOUTH. GO SOUTH. GO EAST.
Deep Stacks intrusion (unlisted door)
This refers to the “intrusion” in the Deep Stacks.
There’s a corner of paper sticking out of the intrusion. GET THE CORNER.
You need to get rid of this coral to get the paper from the intrusion.
It might help to know some real-world facts about coral. Google it.
Coral looks like rock or a plant, but it is an animal. It can be killed.
You can modify one of your rituals to kill coral.
The ritual is a bane for killing something else.
You can modify the Fungicide ritual to make Coralicide.
GO TO THE MUSTARD. GET THE MUSTARD. GO TO THE SALINE. GET IT. GO TO THE RETORT. PUT THE SALINE AND THE MUSTARD AND THE CORAL IN THE RETORT. SAY HERMETIC. TURN ON THE HEAT. WAIT. WAIT. SAY ANTIPATHY. GO TO THE DEEP STACKS. PUT CORALICIDE ON THE CORAL. GET SHEET.
Main Store safe
You can’t open this safe until you’ve opened the Lab Wing fire door.
Make sure you’ve examined everything in all the rooms that you can directly reach after you’ve opened the Lab Wing fire door. East Side Hallway, Airlock, Medical Wing hallway, Nave, Portico, West Side Hall, Scaphe Arcade, Exoscaphe Hull, Quarters Access, Scrubs Country, Under Ward, Study Room, Junior Quarters, Deck Suite, Master Rector’s Quarters, High Tower, Grand Stair (Top and Bottom), Cracks, Edge of Chasm, Chasm Rubble, and Chasm (at Bridge).
The safe is “Zodiacal.” You have a ritual related to astrology.
The ritual “reveals symbolic associations of the celestial sphere.”
Perform the Planetary Lens ritual, found in the Study Room.
-
How do I perform the Planetary Lens ritual?
You’ll need the lenses in the Opticks Annex, Java (aka lubanja), a lunar environment, and the Binding of the Celestial Sphere from a sheet in the Exoscaphe Hull.
-
How do I create a lunar environment?
Use a device for setting environmental influences.
EXAMINE THE ROTOR CARD in the Library.
TURN THE CARD a few times.
TURN THE CARD TO THE MOON.
You’ll need a bound with a gestalt shelf, like the one in the Nave or the Opticks Annex.
PUT THE CARD ON THE SHELF.
PUT THE CONVEX LENS IN THE BOUND. SAY SIMPLE. SAY ESSENTIAL. PUT JAVA IN THE BOUND. PUT THE CONCAVE LENS IN THE BOUND. SAY CELESTIAL.
-
Now that you have the Planetary Lens, you can open the safe with it.
EXAMINE THE SAFE WITH THE LENS to get the combination. TURN THE DIAL TO LIBRA. TURN THE DIAL TO OPHIUCHUS. TURN THE DIAL TO TAURUS. TURN THE DIAL TO SCORPIO.
Medical Wing door
Try going south through this door, and you’ll get a detailed message explaining the problem (but just once, so I’ll reproduce it below.
-
What did it say when I tried going south through this door?
You take another step towards the door, but the sense of hungry menace intensifies. Another step, and your head starts to ache; chills crawl in your guts and nest there.
You have heard of this phenomenon, although you’ve never encountered it – certainly not on a marcher as well-run as the Retort. At least, not as well-run as the Retort used to be…
An aura cloud is an uncontained psychic outbreak, a sucking vortex of vital energies. It’s not a ghost, or a demon, but a less scientific age would certainly have viewed it as such. Any living aura that falls into resonance with the cloud will be drained black in moments. You’ll have to protect or disguise your psychic signature, somehow, to pass by.
You back away before you suffer any more serious harm.
Make sure you’ve examined everything in all the rooms that you can directly reach after you’ve opened the Lab Wing fire door. East Side Hallway, Airlock, Medical Wing hallway, Nave, Portico, West Side Hall, Scaphe Arcade, Exoscaphe Hull, Quarters Access, Scrubs Country, Under Ward, Study Room, Junior Quarters, Deck Suite, Master Rector’s Quarters, High Tower, Grand Stair (Top and Bottom), Cracks, Edge of Chasm, Chasm Rubble, and Chasm (at Bridge).
You have a ritual pertaining to aura protection.
You’ll need to perform the Aura Impermeability ritual, found in the Master Rector’s Quarters. (If you don’t have the Ka sealing or the orichalcum you need for this ritual, open some other doors and come back later when you do.)
-
How do I perform the Aura Impermeability ritual?
You’ll need an environment of spiritual peace, a quartz token from the Materials Store, the Word of Anaphylaxis from the Under Ward, the Ka sealing from a spark in the Study room, the orichalcum from the Main Store safe, and a strengthening element.
-
How do I create an environment of spiritual peace?
Use a device for setting environmental influences.
EXAMINE THE ROTOR CARD in the Library.
TURN THE CARD a few times.
TURN THE CARD TO THE RAINBOW.
You’ll need a bound with a gestalt shelf, like the one in the Nave or the Opticks Annex.
PUT THE CARD ON THE SHELF.
-
How do I find a strengthening element?
You can RECALL a fact about strengthening.
You need a strengthening aroma.
RECALL AROMAS.
“Citronelle is strengthening.” RECALL CITRONELLE.
The impet of citronelle oil is in the Chymic Lab.
SAY KA. PUT ORICHALCUM IN BOUND. SAY ANAPHYLAXIS. OPEN CITRON. SAY ANTIPATHY.
-
Return to the Medical Wing hallway, touch the quartz, and go south.
Medical Wing Hallway cabinet
You can’t open this cabinet until you’ve been through the Medical Wing door.
Examine everything in the Medical Wing and in the Medical Workroom to the east.
When you examine the aeroclave, it says that elemental air is “quite sufficient to dissolve away blood, grease, disease, or any other vestige of living matter.”
You have to bring elemental air back with you from the Medical Wing.
-
How do I leave the Medical Wing without resetting?
You have a ritual that you can use to “neutralize malevolent auras.”
You’ll need to perform the Prophylactic Scalpel ritual.
-
How do I perform the Prophylactic Scalpel ritual?
You’ll need a knife and a “strong aroma.” (Any impet will do.)
-
Where do I find a knife?
You’ll need to use the scalpel in the Medical Wing.
But first, you’ll have to clean it, without leaving the Medical Wing.
You can clean the scalpel in the aeroclave.
PUT THE SCALPEL IN THE AEROCLAVE. CLOSE THE AEROCLAVE. TURN THE KNOB. OPEN THE AEROCLAVE. GET THE SCALPEL.
OPEN IMPET. PUT THE SCALPEL IN THE BOUND. SAY KA. SAY ESSENTIAL. CLOSE IMPET. SAY ANTIPATHY.
-
The ritual instructions say that you have to “wave the blade within a field of cleansing vibration.”
Examine everything here, looking for something that would make a cleansing vibration.
It’s the gong.
HIT THE GONG. WAVE THE SCALPEL. GO NORTH.
-
-
How do I bring elemental air with me?
There’s a bubble in the Medical Workroom. When you examine it, it says it’s “designed to contain elemental air.” “However, this one is empty.”
The parser is a bit finicky here, but you can fill the bubble with elemental air in the Medical Wing.
TAKE THE BUBBLE. GO WEST. FILL THE BUBBLE WITH THE TANK.
CLEAN THE CABINET WITH ELEMENTAL AIR. OPEN THE CABINET.
Deck Suite cabinet
You’ll have everything you need to open this cabinet once you’ve opened the Medical Wing Hallway cabinet and the Deep Stacks door.
This cabinet is locked with an Aithery File lock. It can be opened with an Aithery File seal.
Did you notice the Aithery File reverse mold in the Medical Workroom?
Take that mold with you when you leave the Medical Wing, and use it to make an Aithery seal with the lead, just like you did with the Deep Stacks door. (You can reset to get the lead rod back, or to save time, you can melt the lead Venture File seal directly into the Aithery File mold to make the Aithery File seal.) PERFORM FIRE-RESISTANCE. GO TO THE KILN. DRINK THE POTION. PUT THE AITHERY MOLD IN THE KILN. PUT THE LEAD ON THE AITHERY MOLD. GET THE AITHERY MOLD. GO TO THE DECK SUITE. UNLOCK THE CABINET WITH THE AITHERY SEAL. OPEN THE CABINET.