diff --git a/RELEASE.md b/RELEASE.md
new file mode 100644
index 0000000..0bf6637
--- /dev/null
+++ b/RELEASE.md
@@ -0,0 +1,3 @@
+Release type: patch
+
+Fix #31 - Series breaks on draft articles
diff --git a/pelican/plugins/series/conftest.py b/pelican/plugins/series/conftest.py
index 7a1322f..d4642eb 100644
--- a/pelican/plugins/series/conftest.py
+++ b/pelican/plugins/series/conftest.py
@@ -50,3 +50,6 @@ def _create_generator(tmp_path):
 articles_with_index_over_10 = create_generator(
     "test_data/articles_with_index_over_10", lambda x: x.series["index"]
 )
+articles_with_draft = create_generator(
+    "test_data/articles_with_draft", attrgetter("date")
+)
diff --git a/pelican/plugins/series/series.py b/pelican/plugins/series/series.py
index 6bc6edc..980ebcb 100644
--- a/pelican/plugins/series/series.py
+++ b/pelican/plugins/series/series.py
@@ -58,11 +58,15 @@ def aggregate_series(generator):
     # and collects the 'series' metadata, if present.
     # The 'series_index' metadata is also stored, if specified
     translations = defaultdict(dict)
-    more = []
-    for article in generator.articles:
-        for trans in article.translations:
-            more.append(trans)
-    for article in generator.articles + more:
+    all_articles = (
+        generator.articles
+        + generator.translations
+        + getattr(generator, "drafts", [])
+        + getattr(generator, "drafts_translations", [])
+        + getattr(generator, "hidden_articles", [])
+        + getattr(generator, "hidden_translations", [])
+    )
+    for article in all_articles:
         if "series" in article.metadata:
             article_entry = {
                 "index": int(article.metadata.get("series_index", 0)),
diff --git a/pelican/plugins/series/test_articles_with_draft.py b/pelican/plugins/series/test_articles_with_draft.py
new file mode 100644
index 0000000..2a60340
--- /dev/null
+++ b/pelican/plugins/series/test_articles_with_draft.py
@@ -0,0 +1,46 @@
+def test_draft_article_gets_series_metadata(articles_with_draft):
+    generator, _ = articles_with_draft
+
+    # The draft should be in generator.drafts, not generator.articles
+    assert len(generator.drafts) == 1
+    draft = generator.drafts[0]
+
+    # The draft's series attribute should be a dict, not a raw string
+    assert isinstance(draft.series, dict), (
+        f"Draft article's series is {type(draft.series).__name__}, "
+        "expected dict with series metadata"
+    )
+    assert draft.series["name"] == "test_series"
+
+
+def test_draft_is_included_in_series_ordering(articles_with_draft):
+    generator, _ = articles_with_draft
+    draft = generator.drafts[0]
+
+    # The series should contain all 3 articles (2 published + 1 draft)
+    assert len(draft.series["all"]) == 3
+
+
+def test_published_articles_see_draft_in_series(articles_with_draft):
+    _, articles = articles_with_draft
+
+    # Published articles should also have all 3 in their series
+    for article in articles:
+        assert len(article.series["all"]) == 3
+
+
+def test_draft_series_navigation(articles_with_draft):
+    generator, _ = articles_with_draft
+    draft = generator.drafts[0]
+
+    # Draft is article 2 (by date), so it should have previous and next
+    assert draft.series["index"] == 2
+    assert draft.series["previous"] is not None
+    assert draft.series["next"] is not None
+
+
+def test_draft_not_in_context_series(articles_with_draft):
+    generator, _ = articles_with_draft
+
+    # Context series exists
+    assert "test_series" in generator.context["series"]
diff --git a/pelican/plugins/series/test_data/articles_with_draft/series_article_1.md b/pelican/plugins/series/test_data/articles_with_draft/series_article_1.md
new file mode 100644
index 0000000..d7acf3b
--- /dev/null
+++ b/pelican/plugins/series/test_data/articles_with_draft/series_article_1.md
@@ -0,0 +1,8 @@
+Title: Post number 1
+Date: 2021-02-01 13:00:00
+Category: test
+Tags: foo, bar, foobar
+Summary: I have a lot to test
+Series: test_series
+
+Content 1
diff --git a/pelican/plugins/series/test_data/articles_with_draft/series_article_2.md b/pelican/plugins/series/test_data/articles_with_draft/series_article_2.md
new file mode 100644
index 0000000..484597d
--- /dev/null
+++ b/pelican/plugins/series/test_data/articles_with_draft/series_article_2.md
@@ -0,0 +1,9 @@
+Title: Post number 2
+Date: 2021-02-02 13:00:00
+Category: test
+Tags: foo, bar, foobar
+Summary: I have a lot to test
+Series: test_series
+Status: draft
+
+Content 2
diff --git a/pelican/plugins/series/test_data/articles_with_draft/series_article_3.md b/pelican/plugins/series/test_data/articles_with_draft/series_article_3.md
new file mode 100644
index 0000000..4ef4638
--- /dev/null
+++ b/pelican/plugins/series/test_data/articles_with_draft/series_article_3.md
@@ -0,0 +1,8 @@
+Title: Post number 3
+Date: 2021-02-03 13:00:00
+Category: test
+Tags: foo, bar, foobar
+Summary: I have a lot to test
+Series: test_series
+
+Content 3