diff --git a/src/lib/components/Battle/Chapter3.story.svelte b/src/lib/components/Battle/Chapter3.story.svelte
new file mode 100644
index 0000000..6cc1360
--- /dev/null
+++ b/src/lib/components/Battle/Chapter3.story.svelte
@@ -0,0 +1,53 @@
+<Beer />
+<Hst.Story>
+	<Battle {status} params={{ battleId: 5 }} {api} />
+
+	<svelte:fragment slot="controls">
+		<Hst.Select
+			bind:value={status}
+			title="status"
+			options={Object.fromEntries(statuses.map((s) => [s, s]))}
+		/>
+		<Hst.Number bind:value={wave} title="wave" />
+	</svelte:fragment>
+</Hst.Story>
+
+<script>
+	/** @type any */
+	export let Hst;
+	import { logEvent } from 'histoire/client';
+	import { readable } from 'svelte/store';
+	import Beer from '../Beer.svelte';
+	import Battle from '../Battle.svelte';
+
+	let status = 'upcoming';
+	let wave = '1';
+
+	const api = {
+		event: {
+			setCharacter: (...e) => logEvent('setCharacter', e),
+			setActiveCampaign: () => {},
+		},
+		activeCampaign: readable({
+			battles: [
+				null,
+				null,
+				null,
+				null,
+				{
+					wave,
+					status: 'ongoing',
+					scenario: 's',
+					city: 'c',
+					character: 'bob',
+					additionalCharacters: [
+						{ choices: ['one', 'two'], selection: 'one' },
+						{ choices: ['three', 'four'], selection: 'three' },
+					],
+				},
+			],
+		}),
+	};
+
+	let statuses = ['upcoming', 'prep', 'ongoing', 'won', 'lost'];
+</script>
diff --git a/src/lib/store/genNextBattle.js b/src/lib/store/genNextBattle.js
index 7e4a7fb..34acce8 100644
--- a/src/lib/store/genNextBattle.js
+++ b/src/lib/store/genNextBattle.js
@@ -59,6 +59,48 @@ export function genChapter2Battle(battles) {
 		additionalCharacters: [{ choices, selection: R.first(choices) }],
 	};
 }
+export function genChapter3Battle(battles) {
+	const chapter = 3;
+
+	const scenario = pickOne(
+		chapters[chapter - 1].scenarios.filter(
+			(s) => !battles.map(R.prop('scenario')).includes(s),
+		),
+	);
+	const character = pickOne(
+		chapters[chapter - 1].characters.filter(
+			(s) => !battles.map(R.prop('character')).includes(s),
+		),
+	);
+	const city = pickOne(
+		chapters[chapter - 1].cities.filter(
+			(s) => !battles.map(R.prop('city')).includes(s),
+		),
+	);
+
+	let choices1 = battles.slice(0, 2).map(R.prop('character'));
+	let choices2 = battles.slice(2, 4).map(R.prop('character'));
+	if (battles.length == 5) {
+		choices1 = choices1.filter(
+			(n) => n !== R.last(battles).additionalCharacters[0].selection,
+		);
+		choices2 = choices2.filter(
+			(n) => n !== R.last(battles).additionalCharacters[1].selection,
+		);
+	}
+
+	return {
+		scenario,
+		character,
+		city,
+		status: 'ongoing',
+		wave: 1,
+		additionalCharacters: [choices1, choices2].map((choices) => ({
+			choices,
+			selection: R.first(choices),
+		})),
+	};
+}
 
 export function genNextBattle(battles = []) {
 	let chapter = R.clamp(1 + parseInt(battles.length / 2), { min: 1, max: 4 });
@@ -66,4 +108,6 @@ export function genNextBattle(battles = []) {
 	if (chapter === 1) return genChapter1Battle(battles);
 
 	if (chapter === 2) return genChapter2Battle(battles);
+
+	if (chapter === 3) return genChapter3Battle(battles);
 }
diff --git a/src/lib/store/genNextBattle.test.js b/src/lib/store/genNextBattle.test.js
index fa2bbe8..b184b9c 100644
--- a/src/lib/store/genNextBattle.test.js
+++ b/src/lib/store/genNextBattle.test.js
@@ -1,6 +1,10 @@
 import { test, expect } from 'vitest';
 
-import { genNextBattle, genChapter2Battle } from './genNextBattle.js';
+import {
+	genNextBattle,
+	genChapter2Battle,
+	genChapter3Battle,
+} from './genNextBattle.js';
 
 test('generate for the first chapter', () => {
 	const next = genNextBattle();
@@ -31,3 +35,34 @@ test('chapter 2, second battle', () => {
 	expect(result.additionalCharacters[0].selection).toEqual('one');
 	expect(result.additionalCharacters[0].choices).toEqual(['one']);
 });
+
+test('chapter 3, first battle', () => {
+	const result = genChapter3Battle([
+		{ character: 'one' },
+		{ character: 'two' },
+		{ character: 'three' },
+		{ character: 'four' },
+	]);
+
+	expect(result.additionalCharacters[0].selection).toEqual('one');
+	expect(result.additionalCharacters[1].selection).toEqual('three');
+});
+
+test('chapter 3, second battle', () => {
+	const result = genChapter3Battle([
+		{ character: 'one' },
+		{ character: 'two' },
+		{ character: 'three' },
+		{ character: 'four' },
+		{
+			character: 'five',
+			additionalCharacters: [
+				{ selection: 'one' },
+				{ selection: 'three' },
+			],
+		},
+	]);
+
+	expect(result.additionalCharacters[0].selection).toEqual('two');
+	expect(result.additionalCharacters[1].selection).toEqual('four');
+});