diff --git a/src/routes/lists/[slug]/+page.server.ts b/src/routes/lists/[slug]/+page.server.ts
index ccbe012..8f025af 100644
--- a/src/routes/lists/[slug]/+page.server.ts
+++ b/src/routes/lists/[slug]/+page.server.ts
@@ -21,6 +21,13 @@ import { and, eq, ne } from 'drizzle-orm';
 import { error, fail, redirect } from '@sveltejs/kit';
 import type { Actions, PageServerLoad } from './$types';
 
+/** Archived lists and where their old URL now points. Only used once the list is gone. */
+const RETIRED_LISTS: Record<string, string> = {
+	'books-to-read': '/trackers/books',
+	'scientific-papers': '/trackers/books?kind=papers',
+	'cars-trains-planes-to-spot': '/trackers/spotting'
+};
+
 async function currentList(slug: string) {
 	const list = await findList(slug);
 	if (!list) error(404, 'List not found');
@@ -79,7 +86,12 @@ export const load: PageServerLoad = async ({ params }) => {
 		}
 	}
 	const list = await getList(params.slug);
-	if (!list) error(404, 'List not found');
+	if (!list) {
+		// Retired lists whose items moved into a tracker (or that were dropped) keep their URL.
+		const moved = RETIRED_LISTS[params.slug];
+		if (moved) redirect(301, moved);
+		error(404, 'List not found');
+	}
 	const completedIds = list.isProgress
 		? list.items.filter((item) => item.doneAt).map((item) => item.id)
 		: [];