diff --git a/campaigns/the-ballad-of-chalk/campaign.md b/campaigns/the-ballad-of-chalk/campaign.md
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+---
+name: the-ballad-of-chalk
+game: cloud-empress
+created: 2026-09-13
+---
+
+# 白垩之歌 The Ballad of Chalk
+
+## 前提 Premise
+
+弗莱格（绰号「酸的」）是个靠悬赏吃饭的佣兵，怀里始终揣着一根白垩。他痴迷白垩——
+骨皮工艺留下的那种白，能改写现实的那种白——想真正精通它，好让父母终于肯正眼看他
+一眼。可他的心灵迟钝得可怜，偏偏施法靠的就是心灵。在这个巨蝉苏醒、云城朽坏的余世
+里，他要用一根粉笔和一把左轮，写一首证明自己的歌。
+
+## 基调与主题 Tone & themes
+
+- 生态科学奇幻 + 生存恐怖。世界很美，但致命的毒素看不见。
+- 暴力又快又丑，能避则避；活下来靠谨慎、运气和同伴，不靠英雄主义。
+- 个人执念对一个无动于衷的世界：一个人的执念究竟值不值，又究竟需不需要被看见。
+- 主题问题：你想向谁证明？如果那个人永远不会承认，你还练吗？
+
+## 边界 Boundaries
+
+- 采用游戏自带的内容警告：巨型昆虫、精神疾病、流血、截肢、军事占领、枪支暴力。
+- 对儿童的直接伤害默认留在幕后（只做侧面描写），除非玩家明确要求搬到台前。
+- 玩家可随时喊停、快进或要求跳过任何内容；新出现的限制会追加到这里。
+- 这一节由玩家随时修改。
+
+## 开场 Starting situation
+
+低地边缘，盐碱荒原。天上是滑界涟漪——周围的现实正在扭曲。弗莱格独自走在干涸的盐
+脊道上，行囊里那根白垩被他的拇指摩过一遍又一遍。就在这时，一个浑身涂满湿泥的孩子
+从荒地里走出来，站在路当中，说自己是村庄唯一的幸存者。
+
+## 备注
+
+- 游戏：`cloud-empress`，调用时用 `--campaign the-ballad-of-chalk`。
+- 本战役的规则覆盖写在 `house-rules.md`（暂为空，即按游戏原样运行）。
diff --git a/campaigns/the-ballad-of-chalk/characters/_template.md b/campaigns/the-ballad-of-chalk/characters/_template.md
new file mode 100644
index 0000000..b30cf1f
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/characters/_template.md
@@ -0,0 +1,18 @@
+---
+name: 
+game: 
+stats: {}
+tracks: {}
+conditions: []
+inventory: []
+---
+
+# 
+
+## Description
+
+## Background
+
+## Relationships
+
+## Notes
diff --git a/campaigns/the-ballad-of-chalk/characters/flag.md b/campaigns/the-ballad-of-chalk/characters/flag.md
new file mode 100644
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+++ b/campaigns/the-ballad-of-chalk/characters/flag.md
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+---
+name: 弗莱格（酸的）
+game: cloud-empress
+stats:
+  心智: 31
+  心灵: 18
+  力量: 33
+  速度: 58
+saves:
+  现实: 26
+  恐惧: 23
+  躯体: 54
+age: 成年
+background: 佣兵
+stress: 0
+tracks:
+  harm: { value: 0, max: 10 }
+  wounds: { value: 0, max: 3 }
+conditions: []
+inventory:
+  - 帆布披风（0 护甲值）
+  - 布满灰尘的战斗护甲（5 护甲值）
+  - 左轮手枪（1d10 伤害，近处，3 发弹药）
+  - 肩套
+  - 粘土烟斗与一袋玉米烟叶
+  - 悬赏令宾果卡
+  - 一根白垩
+  - 熏驼鸽肉干（2 人份）
+  - 法术残篇：隐形
+---
+
+# 弗莱格（酸的）
+
+## 描述
+
+一个沉默、瘦削、手指被白垩磨得发白的中年佣兵。走路时左手总在腰侧，右手则时不时
+探进夹克，摸一摸那根白垩。别人以为他在数子弹。
+
+## 背景
+
+之前在沙漠里替人追捕逃犯——循着悬赏令和脚印跑，开枪，领赏，再往北。那段日子给了
+他一双好眼、一把左轮、一张喝过太多茶的胃，以及一个从死人身上捡来的习惯：收集白垩。
+
+## 执念：白垩
+
+他要精通白垩。骨皮工艺的残片能把一个人的意志按进现实里，那是他见过最像「被认可」
+的东西。可他的心灵（18）是全卡最弱的一项——施法、纹章、感受异界，全都要过心灵。
+他比谁都刻苦，也比谁都容易当众出丑。他把这当作一场必须打赢的仗，因为输给白垩，就
+等于向父母承认：他们当初看轻他是对的。
+
+## 技能
+
+- 火器（职业赋予；他身上是那把左轮）
+- 街头智慧（职业赋予）
+- 施法（自选 1，为契合白垩执念）
+- 白垩收集（自选 2，为契合白垩执念）
+
+> 自选的两项技能按「白垩执念」挑选；想换随时说。
+
+## 随身物
+
+- 一只疲惫的老驴蟹（随身物，不占格）。它又踢又咬，还不断地乞讨食物。
+
+## 关系
+
+- 父母：弗莱格口中反复出现的两个人。他们的样子、住处、是否还活着，都还没定。
+
+## 职业状态
+
+当你附近的盟友看到你恐慌时，他们必须进行恐惧豁免，否则也会恐慌。
diff --git a/campaigns/the-ballad-of-chalk/gm/README.md b/campaigns/the-ballad-of-chalk/gm/README.md
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+# GM only
+
+Truth the PC has not learned: hidden motives, unrevealed identities, off-screen
+events, and what is really going on.
+
+**Not player-facing.** The player may read anything else in the campaign, so a
+secret must never be written outside `gm/`. Nothing here may appear in a session
+log or in chat until the PC observes it or is told.
+
+Keep `../state/knowledge.md` as the PC's counterpart: what they know, believe,
+and suspect. When the two disagree, `knowledge.md` is what the PC currently
+thinks — narrate from it, not from here.
+
+## Retconning
+
+You may change a fact here after the fact, but only in the layer the PC has not
+perceived. The test is perception: if every session-log entry and everything in
+`state/knowledge.md` still reads exactly as before, the retcon is invisible and
+allowed. What the PC saw, heard, or was told stays fixed; the cause behind it
+may change.
+
+Use it to repair a plot that cannot otherwise be made to work. Do not use it
+liberally, and never to dodge a consequence the fiction already earned. Record
+each one in `retcons.md`.
diff --git a/campaigns/the-ballad-of-chalk/gm/notes.md b/campaigns/the-ballad-of-chalk/gm/notes.md
new file mode 100644
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+# 幕后真相（GM only）
+
+**不可出现在会话日志或对话中**，直到弗莱格亲眼看见或被人告知。
+
+## 泥巴孩子
+
+- 神谕：`Q: 孩子的村庄是被巨蝉毁灭的吗？ d6=3 → No, but…`
+  村庄**不是**毁于巨蝉。真实原因**尚未确立**——留给神谕在合适时机决定。
+- 同一次神谕的转折：`某个同行者一直在撒谎，你此刻才看见破绽。`
+  有人在撒谎，而破绽此刻已经在场。
+- 已确定的破绽：孩子浑身是**湿泥**，但这一带是盐碱荒原，最近的水源是灰喉井，
+  方向也对不上。孩子自称从荒地深处走来——说不通。
+- 「我是村庄唯一的幸存者」这句话可能为假。
+- 撒谎者未必要是孩子本人；也可能是弗莱格随后遇到的某个同行者。但破绽现在就在场。
+
+## 白垩
+
+- 弗莱格对白垩的执念是他自己的事，**不是**世界秘密。
+- 他的父母是否真的需要「被证明」、他们现在何处、是否还活着——**尚未确立**。
+  用 `journal oracle` 决定，不要凭空编。
+
+## 待定（用神谕或火花表确立，别硬编）
+
+- 村庄真正的遭遇。
+- 孩子是否知道真相，以及她在隐瞒什么。
+- 白垩坡这个地名是否真实存在。
diff --git a/campaigns/the-ballad-of-chalk/gm/retcons.md b/campaigns/the-ballad-of-chalk/gm/retcons.md
new file mode 100644
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--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/gm/retcons.md
@@ -0,0 +1,12 @@
+# Retcons
+
+A log of facts changed after the fact. Each entry records what changed and why,
+so the change is not quietly contradicted later.
+
+A retcon is only allowed in the layer the PC has not perceived: every session
+log entry and every line of `../state/knowledge.md` must still read exactly as
+before. See `README.md`.
+
+| Session | What changed | Why |
+|---------|--------------|-----|
+|         |              |     |
diff --git a/campaigns/the-ballad-of-chalk/house-rules.md b/campaigns/the-ballad-of-chalk/house-rules.md
new file mode 100644
index 0000000..2f095e1
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/house-rules.md
@@ -0,0 +1,5 @@
+# House rules
+
+This campaign's overrides and additions to the game's rules. The game package
+is authoritative; anything written here takes precedence for this campaign
+only. Leave it empty if the game runs as written.
diff --git a/campaigns/the-ballad-of-chalk/sessions/0001-the-mud-child.md b/campaigns/the-ballad-of-chalk/sessions/0001-the-mud-child.md
new file mode 100644
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--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/sessions/0001-the-mud-child.md
@@ -0,0 +1,15 @@
+# Session 0001 — 泥巴孩子
+
+- **Campaign:** the-ballad-of-chalk
+- **Game:** cloud-empress
+- **Date:** 2026-09-13
+- **PC:** 弗莱格（酸的）
+
+## Scene 1 — 盐脊道上
+
+`spark roll 20 → "一个浑身涂满泥巴的孩子，说自己是村庄唯一的幸存者。" [npc, child]`
+`weather roll 7 → "滑界涟漪——周围的现实被扭曲。" [slip]`
+
+**Scene:** 低地边缘，盐碱荒原。天是滑界涟漪，云层像被谁用手指抹开，现实的边缘在弗莱格
+眼角余光里微微走样。风里全是盐味。他一个人走在干涸的盐脊道上，行囊里那根白垩又被
+拇指摩过一遍。就在前面路当中，站着一个浑身涂满湿泥的孩子，一动不动地看着他。
diff --git a/campaigns/the-ballad-of-chalk/sessions/README.md b/campaigns/the-ballad-of-chalk/sessions/README.md
new file mode 100644
index 0000000..6610ac0
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/sessions/README.md
@@ -0,0 +1,4 @@
+# Sessions
+
+One file per session, named `NNNN-slug.md` (zero-padded, e.g. `0001-the-ash-gate.md`).
+Session logs are append-only; see `AGENTS.md` for the format.
diff --git a/campaigns/the-ballad-of-chalk/state/clocks.md b/campaigns/the-ballad-of-chalk/state/clocks.md
new file mode 100644
index 0000000..7673d82
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/state/clocks.md
@@ -0,0 +1,8 @@
+# Clocks
+
+Ticking pressures. Fill a segment whenever the fiction advances the clock.
+
+| Clock | Segments | Filled | Notes |
+|-------|----------|--------|-------|
+| 巨蝉苏醒 | 6 | 0 | 夏天一到，巨蝉便从地下醒来。每过一段时日填一格。 |
+| 村庄的真相 | 4 | 0 | 每当弗莱格逼近孩子谎言的破绽，填一格；填满则真相浮出。 |
diff --git a/campaigns/the-ballad-of-chalk/state/knowledge.md b/campaigns/the-ballad-of-chalk/state/knowledge.md
new file mode 100644
index 0000000..1326568
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/state/knowledge.md
@@ -0,0 +1,32 @@
+# What the PC knows
+
+The PC's working picture of the world — not the world itself. Narration may draw
+on these entries and on what the PC perceives now; anything the PC has not
+learned belongs in `../gm/`.
+
+Update this file whenever a scene reveals something, confirms a suspicion, or
+overturns a belief. A mistaken belief stays here under Suspected until the PC
+learns better, even after the GM knows the truth.
+
+## Known
+
+| Fact | Learned |
+|------|---------|
+| 巨蝉在夏天苏醒，吞噬死者与白垩。 | 常识 |
+| 第 29 次远征军涌进低地，寻找失踪的云之女帝。 | 常识 |
+| 白垩能驱动纹章与法术；要用它，得先付代价。 | 常识 |
+| 低地边缘最近的水源是灰喉井。 | 走这条道的人都知道 |
+
+## Suspected
+
+| Belief | Basis |
+|--------|-------|
+| 父母从来没有真正看得起他。 | 他离开家时他们说的话 |
+| 只要精通白垩，他们就会承认他。 | 他自己的推断，未经检验 |
+| 心灵迟钝可以靠苦功弥补。 | 他不肯承认的另一半可能是错的 |
+
+## Open questions
+
+- 我到底能不能学会白垩魔法？
+- 我的父母现在在哪里？他们要我拿出什么才肯正眼看我？
+- 那个满身泥的孩子说的是真的吗？
diff --git a/campaigns/the-ballad-of-chalk/state/threads.md b/campaigns/the-ballad-of-chalk/state/threads.md
new file mode 100644
index 0000000..7214889
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/state/threads.md
@@ -0,0 +1,9 @@
+# Threads
+
+Open questions and unresolved goals. Status is one of: open, resolved, abandoned.
+
+| Thread | Status | Notes |
+|--------|--------|-------|
+| 精通白垩，向父母证明自己 | open | 弗莱格的执念；心灵 18 是他最大的障碍。 |
+| 那个泥巴孩子是不是唯一幸存者 | open | 她自称村庄唯一的幸存者。 |
+| 白垩从何而来、父母身在何处 | open | 出身与执念的源头，尚未打捞。 |
diff --git a/campaigns/the-ballad-of-chalk/tables/README.md b/campaigns/the-ballad-of-chalk/tables/README.md
new file mode 100644
index 0000000..973e7ea
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/tables/README.md
@@ -0,0 +1,13 @@
+# Campaign tables
+
+Tables placed here belong to this campaign and override the game's tables when
+names collide. The lookup order for `journal roll <name>` is:
+
+1. `campaigns/<name>/tables/<name>.csv`
+2. `games/<game>/tables/<name>.csv`
+
+Use this directory for tables specific to this campaign's setting or cast. The
+game's own tables do not need to be copied here.
+
+Format: a CSV with a `min,max,text` header and an optional `tags` column. See
+`docs/oracle.md`.
diff --git a/campaigns/the-ballad-of-chalk/world/factions/README.md b/campaigns/the-ballad-of-chalk/world/factions/README.md
new file mode 100644
index 0000000..db756e3
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/world/factions/README.md
@@ -0,0 +1,24 @@
+# Factions
+
+One file per faction, named `kebab-case.md`.
+
+These files are player-facing: record what the PC has observed or been told. A
+hidden agenda or an off-screen plan belongs in `../../gm/`.
+
+```markdown
+---
+name: 
+goal: 
+disposition: friendly | neutral | hostile | unknown
+---
+
+# <name>
+
+## Description
+
+## Members
+
+## Resources
+
+## History
+```
diff --git a/campaigns/the-ballad-of-chalk/world/locations/README.md b/campaigns/the-ballad-of-chalk/world/locations/README.md
new file mode 100644
index 0000000..eee0fa6
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/world/locations/README.md
@@ -0,0 +1,26 @@
+# Locations
+
+One file per location, named `kebab-case.md`. Keep the frontmatter stable so
+the agent can update it in place.
+
+These files are player-facing: record what the PC has observed or could observe.
+A hidden truth the PC has not yet learned belongs in `../../gm/`.
+
+```markdown
+---
+name: 
+type: 
+region: 
+status: visited | known | rumored
+---
+
+# <name>
+
+## Description
+
+## Notable features
+
+## Inhabitants
+
+## History
+```
diff --git a/campaigns/the-ballad-of-chalk/world/locations/ash-throat-well.md b/campaigns/the-ballad-of-chalk/world/locations/ash-throat-well.md
new file mode 100644
index 0000000..26706f1
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/world/locations/ash-throat-well.md
@@ -0,0 +1,27 @@
+---
+name: 灰喉井
+type: 水站 / 驿站
+region: 低地边缘，盐碱荒原
+status: known
+---
+
+# 灰喉井
+
+## Description
+
+盐脊道上唯一还出水的井。井水发苦，烧开后有白霜浮在表面，据说那就是被冲淡的白垩。
+几间土坯房挤在井边，一面褪色的远征军旗子钉在最高的那间屋顶上，风一吹就哗啦响。
+
+## Notable features
+
+- 一口深井，水苦，但方圆几十里内没有第二处水源。
+- 来往的悬赏猎人、驮鸽商队和云裔的信使在此歇脚。
+- 墙上钉满悬赏令，很多已经褪成空白。
+
+## Inhabitants
+
+守井的老两口，姓什么没人记得。还有几只不肯离开的驮鸽。
+
+## History
+
+据说是第 29 次远征军东进时打下的第一口井。远征军走了，井留下了。
diff --git a/campaigns/the-ballad-of-chalk/world/npcs/README.md b/campaigns/the-ballad-of-chalk/world/npcs/README.md
new file mode 100644
index 0000000..dd4e860
--- /dev/null
+++ b/campaigns/the-ballad-of-chalk/world/npcs/README.md
@@ -0,0 +1,26 @@
+# NPCs
+
+One file per NPC, named `kebab-case.md`.
+
+These files are player-facing: record what the PC has observed or been told. A
+hidden motive or an unrevealed identity belongs in `../../gm/`.
+
+```markdown
+---
+name: 
+role: 
+location: 
+status: alive | dead | missing | unknown
+disposition: friendly | neutral | hostile | unknown
+---
+
+# <name>
+
+## Description
+
+## Wants
+
+## Relationships
+
+## History
+```