diff --git a/gallery_dl/extractor/tapas.py b/gallery_dl/extractor/tapas.py
index e7563854..35a346d9 100644
--- a/gallery_dl/extractor/tapas.py
+++ b/gallery_dl/extractor/tapas.py
@@ -85,8 +85,8 @@ class TapasEpisodeExtractor(TapasExtractor):
         episode = data["episode"]
         if not episode.get("free") and not episode.get("unlocked"):
             raise exception.AuthorizationError(
-                "%s: Episode '%s' not unlocked",
-                episode_id, episode["title"])
+                "{}: Episode '{}' not unlocked".format(
+                    episode_id, episode["title"]))
 
         html = data["html"]
         episode["series"] = self._extract_series(html)
diff --git a/gallery_dl/version.py b/gallery_dl/version.py
index 651745ab..bd777518 100644
--- a/gallery_dl/version.py
+++ b/gallery_dl/version.py
@@ -6,5 +6,5 @@
 # it under the terms of the GNU General Public License version 2 as
 # published by the Free Software Foundation.
 
-__version__ = "1.28.2"
+__version__ = "1.28.3-dev"
 __variant__ = None
diff --git a/test/results/tapas.py b/test/results/tapas.py
index 282425b8..1f677685 100644
--- a/test/results/tapas.py
+++ b/test/results/tapas.py
@@ -5,6 +5,7 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import tapas
+from gallery_dl import exception
 
 
 __tests__ = (
@@ -25,7 +26,7 @@ __tests__ = (
 
 {
     "#url"     : "https://tapas.io/episode/2068651",
-    "#comment" : "html",
+    "#comment" : "book / html",
     "#class"   : tapas.TapasEpisodeExtractor,
     "#pattern" : "^text:",
     "#sha1_url": "0b53644c864a0a097f65accea6bb620be9671078",
@@ -72,6 +73,78 @@ __tests__ = (
     },
 },
 
+{
+    "#url"     : "https://tapas.io/episode/2717154",
+    "#comment" : "comic / jpg",
+    "#class"   : tapas.TapasEpisodeExtractor,
+    "#pattern" : r"https://us-a\.tapas\.io/pc/\w\w/[0-9a-f-]{36}(-\d)?\.jpg\?__token__=.+",
+    "#count"   : 63,
+
+    "book"         : False,
+    "closing"      : None,
+    "closing_date" : None,
+    "comment_cnt"  : 335,
+    "date"         : "dt:2023-01-13 19:00:00",
+    "early_access" : False,
+    "escape_title" : "Episode 3",
+    "extension"    : "jpg",
+    "filename"     : str,
+    "free"         : True,
+    "free_access"  : False,
+    "has_bgm"      : False,
+    "id"           : 2717154,
+    "like_cnt"     : range(7000, 20000),
+    "liked"        : False,
+    "mature"       : False,
+    "must_pay"     : False,
+    "next_ep_id"   : 2717157,
+    "nsfw"         : False,
+    "nu"           : False,
+    "num"          : range(1, 63),
+    "open_comments": True,
+    "pending_scene": 3,
+    "prev_ep_id"   : 2717153,
+    "publish_date" : "2023-01-13T19:00:00Z",
+    "read"         : False,
+    "related_ep_id": None,
+    "relative_publish_date": "Jan 13, 2023",
+    "scene"        : 3,
+    "scheduled"    : False,
+    "thumb_url"    : "https://us-a.tapas.io/sa/f9/a42d3c2f-d642-4481-9583-1d3bacbd302b.png",
+    "title"        : "Episode 3",
+    "unlock_cnt"   : 0,
+    "unlocked"     : False,
+    "view_cnt"     : range(70000, 200000),
+    "series"       : {
+        "badges"        : list,
+        "book"          : False,
+        "comic"         : True,
+        "discount_rate" : int,
+        "escape_title"  : "The Doctor Is Out",
+        "genre"         : dict,
+        "has_book_cover": True,
+        "has_top_banner": True,
+        "id"            : 251031,
+        "item_type"     : None,
+        "on_sale_now"   : False,
+        "premium"       : True,
+        "sale_type"     : "WAIT_OR_MUST_PAY",
+        "subscribed"    : False,
+        "thumb_url"     : "https://us-a.tapas.io/sa/32/7e1daa84-8951-4a53-9574-48ca7d0b0aca_m.jpg",
+        "thumbsup_cnt"  : range(240000, 500000),
+        "title"         : "The Doctor Is Out",
+        "type"          : "COMICS",
+        "url"           : "the-doctor-is-out",
+    },
+},
+
+{
+    "#url"      : "https://tapas.io/episode/2717157",
+    "#comment"  : "locked",
+    "#class"    : tapas.TapasEpisodeExtractor,
+    "#exception": exception.AuthorizationError,
+},
+
 {
     "#url"     : "https://tapas.io/SANG123/series",
     "#comment" : "#5306",