The Garden Under the Reservoir

GM book · 1.0.0 · 120-minute plan · 4 players

A lowering reservoir reveals a garden beneath its surface. A caretaker goes down to recover a memorial, while the water board prepares to refill.

Content notice: Flooding and memorial grief; nobody needs to enter deep water.

Before you start

  1. Read the truth, the two endings and the two final methods.
  2. Print the player map and seven cards. Keep the cards face down until discovered.
  3. Use your own rules or the no-dice mode below. Read the opening agreement.
  4. Review the immediate problem and the compression plan; choose a timekeeper.

What is really happening

Caretaker Omri kept a submerged community garden mapped so its memorial could be recovered during maintenance. The refill notice arrived early because two schedules were confused. Holding the correct maintenance valve preserves a dry access window; lifting only the memorial before refilling saves memory but leaves the garden underwater.

How to play

Use your own rules or play without dice. State the goal, choose an approach, explain a reasonable cost and let the players decide. Plausible careful actions succeed; uncertain actions can succeed with delay, spent supplies or a favour owed. Evidence is always available through its described action. Each player creates an ordinary person with a useful skill, a reason to help, and an item. No character sheet, monster statistics or proprietary rulebook is needed.

Opening agreement · 10 minutes

Take 10 minutes to introduce characters, read the premise and discuss the content notice. Anyone may say “pause”, pass on a description, or ask to move an uncomfortable moment offstage. Agree on no combat and on treating consequences as delay or repair, not permanent harm. Give one player the route map and another the time sheet.

Time plan

Follow both investigations; take the break before the immediate problem.

  1. 0–10: Opening agreement · 10 minutes
  2. 10–20: Arrival · 10 minutes
  3. 20–35: Records and tools · 15 minutes
  4. 35–50: An independent trail · 15 minutes
  5. 50–55: Break · 5 minutes
  6. 55–75: The immediate problem · 20 minutes
  7. 75–95: The final choice · 20 minutes
  8. 95–110: Home and aftermath · 15 minutes
  9. 110–120: Closing and epilogues · 10 minutes

Total: 120 minutes.

When time is short

1. Arrival · 10 minutes

Place: Reservoir rim

Read aloud

A row of stone beds appears beneath the retreating water. Rae has tied a rope across the soft shore.

Run this scene

The refill order is premature. Recover the memorial even if the dry window closes. Begin with the concrete request in the premise. Ask each character why they care and give them one ordinary useful item. Read both public observations without requiring a roll. Explain that the marked routes are safe to investigate, and offer a choice of the records or the visible trail. Let the group appoint a map reader; do not use hidden travel rolls to block the first lead.

Choices

If the group gets stuck

If conversation or a test fails, give the public card anyway. A clear sign points to Sunken garden. A missing method can be found again at Refill valve; no character skill is required.

People in this scene

Rae: Keep visitors off unstable mud Offers directions and ordinary transport for news of the outcome. Voice: Patient, concrete sentences; ask one practical question.

Evidence to give

Timeline record: The cleaning and refill notices share a copied date but different sequence numbers.
Give it: Inspect the visible labelled object. Give its full text automatically; a check affects time or extra colour only.
GM inference: The refill order is premature.

Fallback instruction: The memorial tablet fits the stair trolley and can be raised before refilling.
Give it: Inspect the visible labelled object. Give its full text automatically; a check affects time or extra colour only.
GM inference: Recover the memorial even if the dry window closes.

Continue: Records and tools or An independent trail

2. Records and tools · 15 minutes

Place: Schedule office

Read aloud

Fin compares two schedules: one for cleaning, one for refilling. Both carry the same copied date.

Run this scene

A correct schedule preserves a dry access window. The caretaker is in the garden. Put the method card and destination note on the table. Ask what the two objects suggest, then answer direct practical questions from their wording. The maker can trade tools for help carrying or recording them, but refusal never removes these public documents. The trail remains another route. A check, if your rules use one, changes the time or tidiness of the work rather than whether this evidence exists.

Choices

If the group gets stuck

If conversation or a test fails, give the public card anyway. A clear sign points to Sunken garden. A missing method can be found again at Refill valve; no character skill is required.

People in this scene

Fin: Find the real maintenance window Lends supplies if a character helps carry or catalogue them. Public instructions remain available. Voice: Quick, exact words; point at tools while speaking.

Evidence to give

Method diagram: Maintenance sequence 12 precedes refill 13; hold valve on 12 until the dry stair clears.
Give it: Inspect the visible labelled object. Give its full text automatically; a check affects time or extra colour only.
GM inference: A correct schedule preserves a dry access window.

Destination note: Omri’s work note says SUNKEN GARDEN, memorial bed.
Give it: Inspect the visible labelled object. Give its full text automatically; a check affects time or extra colour only.
GM inference: The caretaker is in the garden.

Continue: An independent trail or The immediate problem

3. An independent trail · 15 minutes

Place: Dry stair

Read aloud

Ames brushes mud from a dry stair rail. A garden plan is carved into its first step.

Run this scene

A physical route reaches him. A witness confirms the destination. Describe the physical trail before asking for a decision. The witness tells what they actually observed and admits what they did not see. If the group refuses conversation, the physical route supplies the destination. Let a character compare the timeline and another trace the map. For a divided group, take one short turn per side, then reunite at the meeting; do not add another travel encounter.

Choices

If the group gets stuck

If conversation or a test fails, give the public card anyway. A clear sign points to Sunken garden. A missing method can be found again at Refill valve; no character skill is required.

People in this scene

Ames: Protect the dry stair until the caretaker returns Guides the party if they share a plan. If refused, points to the visible trail. Voice: Cautious, distinguish observation from assumption.

Evidence to give

Physical trail: Cleaned rail marks continue down the dry stair toward the memorial bed.
Give it: Inspect the visible labelled object. Give its full text automatically; a check affects time or extra colour only.
GM inference: A physical route reaches him.

Witness statement: Ames saw Omri roll a trolley down the dry stair.
Give it: Ask any direct question, or read the witness’s signed statement if conversation is refused.
GM inference: A witness confirms the destination.

Continue: Records and tools or The immediate problem

4. The immediate problem · 20 minutes

Place: Sunken garden

Read aloud

Omri kneels beside a memorial tablet. Flowers carved into the stone match the beds around him.

Run this scene

Caretaker Omri kept a submerged community garden mapped so its memorial could be recovered during maintenance. The refill notice arrived early because two schedules were confused. Holding the correct maintenance valve preserves a dry access window; lifting only the memorial before refilling saves memory but leaves the garden underwater. State the immediate stakes and offer both listed approaches. Before resolving action, ask who observes, who acts and who helps. Make any cost visible before a player accepts it. Avoid demanding a special ability or spell. When a plan fails, use the slower listed route and mark its time cost; people remain recoverable. Once the goal is safe, mark the immediate goal safe and continue. A refusal by the keeper cannot hide the marked safety instructions.

Choices

If the group gets stuck

Leave the beds behind and escort Omri up the marked stair immediately. Explain a five-minute delay before they accept it; mark the immediate goal safe when the people or resource are secured.

People in this scene

Omri: Recover the memorial without risking anyone Explains both solutions when the party agrees to protect the immediate goal; the marked instructions are available regardless. Voice: Calm under pressure; admit the decision and its cost.

Evidence to give

Safety marks: The rope line marks firm stair access; mud beyond it is optional and unsafe.
Give it: Inspect the visible labelled object. Give its full text automatically; a check affects time or extra colour only.
GM inference: Use the marked stair, not the exposed shoreline.

Encounter: Bring Omri and the tablet to the firm stair before refill.

A delay leaves less time for the final repair or decision. Explain costs before resolving an action.

Approach A: Hold maintenance sequence 12 while a trolley team raises the tablet.
Approach B: Leave the beds behind and escort Omri up the marked stair immediately.

4 players: Two pairs take observation and action tasks. Resolve them in two short alternating turns.

Mark the immediate goal safe after either safe approach; a setback costs time, not access to the next scene.

Continue: The final choice

5. The final choice · 20 minutes

Place: Refill valve

Read aloud

The refill valve is tagged with two dates, one overwritten. The water is still below the dry stair.

Run this scene

A correct schedule preserves a dry access window. Use the marked stair, not the exposed shoreline. Reveal the method and fallback together. Ask the group which tradeoff it accepts and give every character a small contribution. Mark the complete method for the first choice or the fallback method for the second. A risky improvisation should inherit one of these outcomes after its cost is explained, rather than create a third unprepared lock. Keep the immediate goal safe. Return by the known marked route; no new location needs to be invented.

Choices

If the group gets stuck

Raise the tablet, clear the stair, and permit scheduled refill. Mark the fallback method, keep the immediate goal safe and read the cost ending. Do not repeat a failed test.

People in this scene

Fin: Find the real maintenance window Lends supplies if a character helps carry or catalogue them. Public instructions remain available. Voice: Quick, exact words; point at tools while speaking.

Omri: Recover the memorial without risking anyone Explains both solutions when the party agrees to protect the immediate goal; the marked instructions are available regardless. Voice: Calm under pressure; admit the decision and its cost.

Evidence to give

Method diagram: Maintenance sequence 12 precedes refill 13; hold valve on 12 until the dry stair clears.
Give it: Inspect the visible labelled object. Give its full text automatically; a check affects time or extra colour only.
GM inference: A correct schedule preserves a dry access window.

Fallback instruction: The memorial tablet fits the stair trolley and can be raised before refilling.
Give it: Inspect the visible labelled object. Give its full text automatically; a check affects time or extra colour only.
GM inference: Recover the memorial even if the dry window closes.

Encounter: Choose what the dry window can preserve.

The complete method preserves the planned service; the fallback preserves the immediate goal at a visible cost.

Approach A: Correct the notice and hold a supervised dry afternoon for the garden.
Approach B: Raise the tablet, clear the stair, and permit scheduled refill.

4 players: Work in two pairs, one following the method and the other preparing a fallback or record.

Mark the complete method for the first approach or the fallback method for the second. Both allow return and an ending.

Continue: Home and aftermath

6. Home and aftermath · 15 minutes

Place: Reservoir rim

Read aloud

A tablet stands on the rim, or the garden opens for one careful dry afternoon. People bring names to read, rather than flowers to pick.

Run this scene

Choose a complete resolution or a resolution with a cost, then ask the group what happens next. Read the ending matching the selected outcome. Invite each character to add one ordinary detail to the aftermath, then ask the keeper for a concrete next action. Record who accepted the cost and which clues went unused. Spend the last few minutes on one enjoyable moment and one thing to change next time. Characters need not solve every optional inference to earn a resolved ending.

Choices

If the group gets stuck

If no method was chosen, first confirm the immediate goal is safe, use the final fallback method and then read the cost ending. Record the unresolved work and give every character an epilogue.

People in this scene

Rae: Keep visitors off unstable mud Offers directions and ordinary transport for news of the outcome. Voice: Patient, concrete sentences; ask one practical question.

Omri: Recover the memorial without risking anyone Explains both solutions when the party agrees to protect the immediate goal; the marked instructions are available regardless. Voice: Calm under pressure; admit the decision and its cost.

Evidence to give

No new evidence required.

Continue: Read an ending and close the session.

Endings

Complete resolution

The corrected notice buys an afternoon. Omri walks the stone paths with neighbours, mapping what can be remembered without taking it away.

First secure the immediate goal at Sunken garden. Choose this ending only after final method A is used at Refill valve.

Resolution with a cost

The tablet reaches the rim before the water rises. The garden disappears again, but its plan and names remain where visitors can see them.

First secure the immediate goal at Sunken garden. Choose this ending only after final method B is used at Refill valve.

Clue reasoning

The refill order is premature.
Timeline record

Proceed to Sunken garden
Destination note OR Physical trail OR Witness statement

Use the marked stair, not the exposed shoreline.
Safety marks · the marked safety instructions supply a fallback.

Choose what the dry window can preserve.
Method diagram OR Fallback instruction

Handout answers

h-order: The refill order is premature.

h-fallback: Recover the memorial even if the dry window closes.

h-method: A correct schedule preserves a dry access window.

h-note: The caretaker is in the garden.

h-trail: A physical route reaches him.

h-witness: A witness confirms the destination.

h-safe: Use the marked stair, not the exposed shoreline.

After the session

Record the ending, one memorable choice, and any unresolved work. Ask what was enjoyable and what needs to change. The time plan is a starting point; adapt it to your group.

The Garden Under the Reservoir: GM route atlasStart at Reservoir rim. Schedule office and Dry stair are independent investigation routes; both connect to Sunken garden, which leads to Refill valve. All marked connections are bidirectional. Return uses the known route to Reservoir rim.GM route atlasReservoir rim1Schedule office2Dry stair3Sunken garden4Refill valve5NC-SAFE / immediate problemC-METHOD or C-FALLBACKGM ATLAS · CONNECTIONS ARE BIDIRECTIONAL · NOT TO SCALE · 1.0.0

Start at Reservoir rim. Schedule office and Dry stair are independent investigation routes; both connect to Sunken garden, which leads to Refill valve. All marked connections are bidirectional. Return uses the known route to Reservoir rim.

The Garden Under the Reservoir: Sunken garden — approach planAt Sunken garden, the marked entrance reaches the immediate problem. Approach A: Hold maintenance sequence 12 while a trolley team raises the tablet. Approach B: Leave the beds behind and escort Omri up the marked stair immediately. Both reach the onward route. Layout is schematic, with no combat grid or movement scale.Sunken garden — approach planMarked entrance1Sunken garden2Approach A3Approach B4Marked onward route5NHold maintenance sequence 12 while a trolley team raises the tablet.Leave the beds behind and escort Omri up the marked stair immediately.GM ATLAS · CONNECTIONS ARE BIDIRECTIONAL · NOT TO SCALE · 1.0.0

At Sunken garden, the marked entrance reaches the immediate problem. Approach A: Hold maintenance sequence 12 while a trolley team raises the tablet. Approach B: Leave the beds behind and escort Omri up the marked stair immediately. Both reach the onward route. Layout is schematic, with no combat grid or movement scale.

Original AI-assisted fiction. Use and adapt at your own table. Public redistribution and publication terms are to be set by the owner. This package includes no proprietary game rules.