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GM Guide · Mar de Oro
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Researchers operate the reconstructed Ear in a hidden laboratory.
Part III · The Eight Acts

Chapter XI

Act IV — The Ear

A reconstructed listening device points toward the true inland Source.

GM·Campaign·All chapters

Running This Act

GM Goal
Bring the characters into the hidden laboratory, resolve the pressure on Resa, and force a decision about who controls, copies, destroys, moves, or demonstrates the Ear.
What Must Surface
The Ear is a receiver aimed toward an inland Source. It is not itself the Source and cannot be demonstrated without consequence.
Keep Pressure Moving
Project Custodian schedules, Resa's coercion, competing routes into the laboratory, Albion interest, and Source Disequilibrium.
Active Clocks
  • Project Custodian Completes the Ear — recovered technical records or outside expertise finish the device.
  • Albion Covert Command Identifies the Asset — when full, intrigue becomes armed extraction.
  • Source Disequilibrium — any transmission toward the inland Source advances it.
  • Vega Loses Control — moving the Ear gives Vega a reason to seize it.
Likely Faction Moves
  • The custodian schedules a demonstration, seizure, or sale before anyone can contest custody.
  • Drake prepares a deniable extraction of the device, Resa, or both.
  • Albion or Luminore offer to preserve the work under gentler language and their own ownership.
  • Resa bargains with whoever can protect Elena, whatever the party has promised.
Move On When
The party resolves the immediate custody or use of the Ear, and Albion identifies the asset strongly enough that intrigue becomes extraction.
Update campaign worksheets→View campaign pressure map→
GM at the Table
  • Keep every way in available — inspection, infiltration, writ, Albion offer, assault — and price each one honestly.
  • An official inspection gives the custodian time to move the leverage, destroy records, or stage a safe demonstration.
  • Any transmission advances Source Disequilibrium and hands Albion a precise target.
  • Resa’s three deliberate contradictions are the route to proving coercion; let a careful investigator find them.
  • If the Ear is destroyed, the act becomes a hunt for plates, copies, and remembered patterns rather than a dead end.

Required truths, not required scenes. When a player choice removes a default assumption, use When the Expected Route Breaks

Preparing the next session? Open the Seven-Line Session Prep guide

A machine that listens is more dangerous than a weapon that only fires.

The Hidden Laboratory

The default laboratory occupies a disused warehouse and an older service chamber near the plantation road. If the Project Custodian changed, move the same functional areas to a crown depot, Albion safehouse, Heller black workshop, or Church containment annex. The upper floor contains ordinary tools, pressure vessels, calibration benches, and falsified manifests. Below, a reconstructed chamber imitates one part of the old system. It is not a Source. It is an artificial ear aimed inland. The reconstruction passage behind it was sealed after the San Telmo crisis; the true Source can be reached only by the inland jungle and cave approach.

AREAWHAT IS VISIBLEWHAT IS TRUE
Guard FloorProject guards, a sign-in desk, sealed delivery crates.Some guards believe they protect a lawful state project; others answer privately to the custodian.
WorkshopBrass regulators, pressure gauges, copied San Telmo geometry.The design works only because Resa has been matching a signal he does not understand.
Resa’s RoomNotes, food, a cot, and a locked writing desk.He has left three deliberate contradictions so a careful investigator can identify coercion.
Leverage RoomIf Elena is held: a clean room, books, water, and two guards. Otherwise: files, sealed witness statements, or legal instruments used against Resa.The Project Custodian keeps the pressure intact. If Elena is present, she has memorized overheard names and times.
The Ear ChamberA brass cylinder without ordinary inlet or outlet, mounted before a sealed wall and blocked reconstruction passage.It answers the inland Source and has begun repeating a pulse six heartbeats late. The passage is sealed and cannot be used to reach the Source.
Guard Floor
WHAT IS VISIBLE
Project guards, a sign-in desk, sealed delivery crates.
WHAT IS TRUE
Some guards believe they protect a lawful state project; others answer privately to the custodian.
Workshop
WHAT IS VISIBLE
Brass regulators, pressure gauges, copied San Telmo geometry.
WHAT IS TRUE
The design works only because Resa has been matching a signal he does not understand.
Resa’s Room
WHAT IS VISIBLE
Notes, food, a cot, and a locked writing desk.
WHAT IS TRUE
He has left three deliberate contradictions so a careful investigator can identify coercion.
Leverage Room
WHAT IS VISIBLE
If Elena is held: a clean room, books, water, and two guards. Otherwise: files, sealed witness statements, or legal instruments used against Resa.
WHAT IS TRUE
The Project Custodian keeps the pressure intact. If Elena is present, she has memorized overheard names and times.
The Ear Chamber
WHAT IS VISIBLE
A brass cylinder without ordinary inlet or outlet, mounted before a sealed wall and blocked reconstruction passage.
WHAT IS TRUE
It answers the inland Source and has begun repeating a pulse six heartbeats late. The passage is sealed and cannot be used to reach the Source.

Ways In

APPROACHADVANTAGERISK
Official InspectionLegal access, witnesses, and the ability to preserve records.The Project Custodian has time to move Elena or the substitute leverage, destroy evidence, or stage a safe demonstration.
Shadowed Tide InfiltrationFast access to service routes and silent extraction.Discovery exposes Marina and the rebel network.
Montoya’s WritSanctuary and moral authority.The issue becomes a Church matter and may be sealed from every other faction.
Albion OfferExcellent intelligence and an escape route.Albion intends to take Resa and the Ear once the doors open.
Direct AssaultSurprise and control of tempo.Negotiations Collapse advances by two and the laboratory may rupture.
Official Inspection
ADVANTAGE
Legal access, witnesses, and the ability to preserve records.
RISK
The Project Custodian has time to move Elena or the substitute leverage, destroy evidence, or stage a safe demonstration.
Shadowed Tide Infiltration
ADVANTAGE
Fast access to service routes and silent extraction.
RISK
Discovery exposes Marina and the rebel network.
Montoya’s Writ
ADVANTAGE
Sanctuary and moral authority.
RISK
The issue becomes a Church matter and may be sealed from every other faction.
Albion Offer
ADVANTAGE
Excellent intelligence and an escape route.
RISK
Albion intends to take Resa and the Ear once the doors open.
Direct Assault
ADVANTAGE
Surprise and control of tempo.
RISK
Negotiations Collapse advances by two and the laboratory may rupture.

Resa’s Explanation

Resa

“It is not telling the gas what to do. It is asking a question in the only language the buried system still answers. The answer is coming from inland. I do not think it is meant for us.”

The Choice of the Ear

CHOICEIMMEDIATE RESULTLATER CONSEQUENCE
Destroy ItPrevent the planned demonstration and reduce the Project Custodian’s leverage.Copies and remembered patterns remain; Albion accelerates extraction of Resa.
Copy ItHeller gains technical advantage without immediate public crisis.The party creates another dangerous owner and risks ducal public exposure.
Move ItProtect Elena or the substitute leverage and Resa while choosing a new custodian.The transport becomes the target of the Albion attack.
Demonstrate It SafelyGain undeniable proof and public Position.Any transmission advances Source Disequilibrium and gives Albion a precise target.
Give It to the ClannRemove it from the summit and gain trust.The Clann demand that every copy and map be surrendered or destroyed.
Destroy It
IMMEDIATE RESULT
Prevent the planned demonstration and reduce the Project Custodian’s leverage.
LATER CONSEQUENCE
Copies and remembered patterns remain; Albion accelerates extraction of Resa.
Copy It
IMMEDIATE RESULT
Heller gains technical advantage without immediate public crisis.
LATER CONSEQUENCE
The party creates another dangerous owner and risks ducal public exposure.
Move It
IMMEDIATE RESULT
Protect Elena or the substitute leverage and Resa while choosing a new custodian.
LATER CONSEQUENCE
The transport becomes the target of the Albion attack.
Demonstrate It Safely
IMMEDIATE RESULT
Gain undeniable proof and public Position.
LATER CONSEQUENCE
Any transmission advances Source Disequilibrium and gives Albion a precise target.
Give It to the Clann
IMMEDIATE RESULT
Remove it from the summit and gain trust.
LATER CONSEQUENCE
The Clann demand that every copy and map be surrendered or destroyed.
✦
Previous · Ch XAct III — The Shadowed Tide
Next · Ch XIIAct V — Wolf in the Clouds
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For the Game Master's eyes

Tales of Mar de Oro · Game Master's Guide · Johnny Crown · 7202 Post Sundering

Restricted · For the Game Master

Mar de Oro Game Master Area

This is the Game Master side of Tales of Mar de Oro: campaign chapters, session preparation tools, and running guidance for the Golden Sea. It is open to anyone, but it is written for the person behind the screen.

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7202 Post Sundering · Johnny Crown