backend/internal/store/admin.go

@@ -42,7 +42,7 @@ type SeriesFilter struct {
 // and only the anonymous boolean in raisedByReaderAnswer crosses it.
 const adminSeriesColumns = `s.site, s.series_id, s.title, s.series_url, s.cover_address,
 	s.kind, s.latest_chapter, s.latest_chapter_num, s.latest_checked_at, s.force_poll_at,
-	s.latest_corrected_at`
+	s.latest_corrected_at, s.finished_at`
 
 // raisedByReaderAnswer answers "did a Reader's report set this number" without
 // naming which Reader. Kept apart from adminSeriesColumns so the column list —
@@ -80,7 +80,9 @@ type AdminSeries struct {
 	LatestCorrectedAt int64
 	ReaderCount       int
 	RaisedByReader    bool // a Reader's report set LatestChapterNum
-
+	// FinishedAt is the owner's finish stamp: unix ms, zero while the Series is
+	// not finished — the same shape as the Correction stamp, and its own undo.
+	FinishedAt int64
 }
 
 // SeriesPage is one page of the owner's filtered Series list plus the count
@@ -196,7 +198,7 @@ func (s *Store) SeriesPage(f SeriesFilter) (SeriesPage, error) {
 		`+where+`
 		GROUP BY s.site, s.series_id, s.title, s.series_url, s.cover_address,
 		         s.kind, s.latest_chapter, s.latest_chapter_num, s.latest_checked_at,
-		         s.force_poll_at, s.latest_corrected_at, s.latest_raised_by
+		         s.force_poll_at, s.latest_corrected_at, s.finished_at, s.latest_raised_by
 		`+having+`
 		ORDER BY s.latest_checked_at, s.site, s.series_id
 		LIMIT $`+strconv.Itoa(base+1)+` OFFSET $`+strconv.Itoa(base+2), args...)
@@ -271,7 +273,7 @@ func scanAdminSeries(scan func(...any) error) (AdminSeries, int, error) {
 	if err := scan(
 		&a.Site, &a.SeriesID, &a.Title, &a.SeriesURL, &a.CoverAddress,
 		&a.Kind, &a.LatestChapter, &latestChapterNum, &a.LatestCheckedAt,
-		&a.ForcePollAt, &a.LatestCorrectedAt,
+		&a.ForcePollAt, &a.LatestCorrectedAt, &a.FinishedAt,
 		&a.RaisedByReader, &a.ReaderCount, &total,
 	); err != nil {
 		return AdminSeries{}, 0, err

backend/internal/store/admin_test.go

@@ -394,3 +394,57 @@ func TestAdminSeriesCarriesForcePollAt(t *testing.T) {
 		t.Fatalf("row = %+v, want ForcePollAt 5000", page.Rows)
 	}
 }
+
+// SetSeriesFinished is the owner's finish stamp write: finishing writes the
+// given ms, un-finishing writes zero — the one undo, the same shape as the
+// correction stamp. Touching a missing series is not an error: the row may
+// have been orphaned, and the caller's read decides what exists.
+func TestSetSeriesFinishedStampsAndClears(t *testing.T) {
+	s := newTestStore(t)
+	seedAdminSeries(t, s, seriesSeed{key: "asura:x", url: "u", checkedAt: 9000, bookmarks: 1})
+
+	if err := s.SetSeriesFinished("asura", "x", 42); err != nil {
+		t.Fatalf("SetSeriesFinished: %v", err)
+	}
+	var got int64
+	if err := s.db.QueryRow(
+		`SELECT finished_at FROM series WHERE site = 'asura' AND series_id = 'x'`).Scan(&got); err != nil {
+		t.Fatalf("read finished_at: %v", err)
+	}
+	if got != 42 {
+		t.Fatalf("finished_at = %d, want 42", got)
+	}
+
+	if err := s.SetSeriesFinished("asura", "x", 0); err != nil {
+		t.Fatalf("SetSeriesFinished un-finish: %v", err)
+	}
+	if err := s.db.QueryRow(
+		`SELECT finished_at FROM series WHERE site = 'asura' AND series_id = 'x'`).Scan(&got); err != nil {
+		t.Fatalf("read finished_at after un-finish: %v", err)
+	}
+	if got != 0 {
+		t.Fatalf("finished_at = %d, want 0 (un-finish writes zero)", got)
+	}
+
+	if err := s.SetSeriesFinished("asura", "ghost", 42); err != nil {
+		t.Fatalf("SetSeriesFinished missing: %v", err)
+	}
+}
+
+// The admin projection carries the finish stamp so the web layer can render
+// the finished state without a second read.
+func TestAdminSeriesCarriesFinishedAt(t *testing.T) {
+	s := newTestStore(t)
+	seedAdminSeries(t, s, seriesSeed{key: "asura:x", url: "u", checkedAt: 1000, bookmarks: 1})
+	if err := s.SetSeriesFinished("asura", "x", 5000); err != nil {
+		t.Fatalf("SetSeriesFinished: %v", err)
+	}
+
+	page, err := s.SeriesPage(SeriesFilter{})
+	if err != nil {
+		t.Fatalf("SeriesPage: %v", err)
+	}
+	if len(page.Rows) != 1 || page.Rows[0].FinishedAt != 5000 {
+		t.Fatalf("row = %+v, want FinishedAt 5000", page.Rows)
+	}
+}

backend/internal/store/store.go

@@ -1440,6 +1440,21 @@ func (s *Store) ForceSeriesPoll(site, seriesID string, at int64) error {
 	return nil
 }
 
+// SetSeriesFinished stamps or clears the owner's finish. at is unix ms to
+// finish, zero to un-finish. A finished Series drops out of the Lane's reads
+// (issue #157), and nothing else writes this column: it is the only writer
+// outside migration 0016, so a machine write can never retire a Series
+// silently. Touching a missing series is not an error: the row may have been
+// orphaned, and the caller's read decides what exists.
+func (s *Store) SetSeriesFinished(site, seriesID string, at int64) error {
+	if _, err := s.db.Exec(
+		`UPDATE series SET finished_at = $1 WHERE site = $2 AND series_id = $3`,
+		at, site, seriesID); err != nil {
+		return fmt.Errorf("set series finished %s:%s: %w", site, seriesID, err)
+	}
+	return nil
+}
+
 // LatestCheckedAt reads the column MarkLatestChecked writes. It exists for
 // tests outside this package (the poller's own tests assert on rest
 // bookkeeping) — see MarkLatestChecked for why the field stays off the

backend/internal/web/admin.go

@@ -47,6 +47,8 @@ func (h *Handler) adminRoutes() []adminRoute {
 		{"GET /admin/series", h.adminSeries},
 		{"GET /admin/series/{key}", h.adminSeriesDetail},
 		{"POST /admin/series/{key}/poll", h.adminSeriesPoll},
+		{"POST /admin/series/{key}/finish", h.adminSeriesFinish},
+		{"POST /admin/series/{key}/unfinish", h.adminSeriesUnfinish},
 		{"POST /admin/series/{key}/latest", h.adminSeriesCorrectLatest},
 		{"POST /admin/series/{key}/series-url", h.adminSeriesSetURL},
 		{"POST /admin/series/{key}/remove", h.adminSeriesRemove},

backend/internal/web/admin_series.go

@@ -110,6 +110,11 @@ type seriesRowView struct {
 	// raced answer: the row stays and says a fresh Bookmark caught the press.
 	CanRemove      bool
 	RemovalRefused bool
+	// Finished is the row's display of the owner's finish stamp: the list row
+	// shows the state and never offers the control — that lives on the detail
+	// page, where a press that retires a Series from the Lane is on purpose
+	// and confirm-gated (issue #158).
+	Finished bool
 }
 
 // adminSeries renders the filterable, bookmarkable Series list: filter, Site,
@@ -182,6 +187,96 @@ func (h *Handler) adminSeriesPoll(w http.ResponseWriter, r *http.Request) {
 	h.render(w, http.StatusOK, "series-row", seriesRow(a, band, time.Now()))
 }
 
+// adminSeriesFinish is the owner's Finish control: it stamps the Series'
+// finished_at and answers with the freshly rendered meta fragment, so the
+// "finished <age> ago" line describes the state after the press. The Lane's
+// next pass reads the stamp and stops polling the Series (issue #157). The
+// owner gate is the route's, not this handler's; the body is capped like the
+// API path caps its bodies; the key is validated here — a malformed key is a
+// 400 and an unknown one a 404.
+func (h *Handler) adminSeriesFinish(w http.ResponseWriter, r *http.Request) {
+	site, seriesID, ok := strings.Cut(r.PathValue("key"), ":")
+	if !ok || site == "" || seriesID == "" {
+		http.Error(w, "bad series key", http.StatusBadRequest)
+		return
+	}
+	r.Body = http.MaxBytesReader(w, r.Body, 1<<16)
+	if err := r.ParseForm(); err != nil {
+		http.Error(w, "invalid form", http.StatusBadRequest)
+		return
+	}
+	if _, found, err := h.adminSeriesByKey(site, seriesID); err != nil {
+		log.Printf("series finish %s: %v", site+":"+seriesID, err)
+		http.Error(w, "internal error", http.StatusInternalServerError)
+		return
+	} else if !found {
+		http.NotFound(w, r)
+		return
+	}
+	if err := h.store.SetSeriesFinished(site, seriesID, time.Now().UnixMilli()); err != nil {
+		log.Printf("series finish %s: %v", site+":"+seriesID, err)
+		http.Error(w, "internal error", http.StatusInternalServerError)
+		return
+	}
+	// Re-read after the stamp: the answer must describe the state after the
+	// press, so the line reads "finished just now". The control's one caller
+	// is the detail page, which swaps the meta fragment in place.
+	a, found, err := h.adminSeriesByKey(site, seriesID)
+	if err != nil {
+		log.Printf("series finish %s: %v", site+":"+seriesID, err)
+		http.Error(w, "internal error", http.StatusInternalServerError)
+		return
+	}
+	if !found {
+		http.NotFound(w, r)
+		return
+	}
+	h.render(w, http.StatusOK, "series-detail-meta", h.seriesDetailView(a))
+}
+
+// adminSeriesUnfinish is the reversal of the Finish control: it clears the
+// stamp (writes zero) and answers with the freshly rendered meta fragment, so
+// the Series is back in the Lane's queue from its next pass. Reversal, so it
+// fires instantly with no confirm row (issue #158).
+func (h *Handler) adminSeriesUnfinish(w http.ResponseWriter, r *http.Request) {
+	site, seriesID, ok := strings.Cut(r.PathValue("key"), ":")
+	if !ok || site == "" || seriesID == "" {
+		http.Error(w, "bad series key", http.StatusBadRequest)
+		return
+	}
+	r.Body = http.MaxBytesReader(w, r.Body, 1<<16)
+	if err := r.ParseForm(); err != nil {
+		http.Error(w, "invalid form", http.StatusBadRequest)
+		return
+	}
+	if _, found, err := h.adminSeriesByKey(site, seriesID); err != nil {
+		log.Printf("series unfinish %s: %v", site+":"+seriesID, err)
+		http.Error(w, "internal error", http.StatusInternalServerError)
+		return
+	} else if !found {
+		http.NotFound(w, r)
+		return
+	}
+	if err := h.store.SetSeriesFinished(site, seriesID, 0); err != nil {
+		log.Printf("series unfinish %s: %v", site+":"+seriesID, err)
+		http.Error(w, "internal error", http.StatusInternalServerError)
+		return
+	}
+	// Re-read after the write: the answer must describe the state after the
+	// press, so the fragment no longer carries the finished line.
+	a, found, err := h.adminSeriesByKey(site, seriesID)
+	if err != nil {
+		log.Printf("series unfinish %s: %v", site+":"+seriesID, err)
+		http.Error(w, "internal error", http.StatusInternalServerError)
+		return
+	}
+	if !found {
+		http.NotFound(w, r)
+		return
+	}
+	h.render(w, http.StatusOK, "series-detail-meta", h.seriesDetailView(a))
+}
+
 // adminSeriesCorrectLatest is the Latest Chapter correction: the owner types
 // one number and the Series' Latest Chapter becomes it, stamped as a
 // Correction. The number must be a finite float greater than zero — a
@@ -572,6 +667,7 @@ func seriesRow(a store.AdminSeries, i int, now time.Time) seriesRowView {
 		CanRemove: a.ReaderCount == 0,
 		Pending:   pending,
 		Requested: requested,
+		Finished:  a.FinishedAt > 0,
 	}
 	if a.LatestChapterNum != nil {
 		row.Ch = strconv.FormatFloat(*a.LatestChapterNum, 'f', -1, 64)

backend/internal/web/admin_series_detail.go

@@ -56,6 +56,14 @@ type seriesDetailView struct {
 	// Series no Reader holds can be removed, so the owner is never offered a
 	// button the database will always refuse.
 	CanRemove bool
+	// Finished is the owner's finish stamp rendered for the control: while it
+	// stands, the page offers the instant Un-finish, not the confirm-gated
+	// Finish (issue #158).
+	Finished bool
+	// FinishedSince is the "finished <age> ago" line, "" while no finish
+	// stands. It rides the meta fragment both presses swap, so the answer
+	// itself shows how long the Series has been finished.
+	FinishedSince string
 }
 
 // adminSeriesDetail renders one Series' page, keyed by the composite
@@ -141,6 +149,8 @@ func (h *Handler) seriesDetailView(a store.AdminSeries) seriesDetailView {
 		v.Checked = since(time.Now(), time.UnixMilli(a.LatestCheckedAt))
 	}
 	v.Corrected = correctedAge(time.Now(), a.LatestCorrectedAt)
+	v.Finished = a.FinishedAt != 0
+	v.FinishedSince = finishedAge(time.Now(), a.FinishedAt)
 
 	// Provenance: the actor class behind the current number, evaluated in the
 	// order the classes outrank one another — the owner's stamp, which a
@@ -171,3 +181,13 @@ func correctedAge(now time.Time, at int64) string {
 	}
 	return "corrected " + since(now, time.UnixMilli(at))
 }
+
+// finishedAge is the finish marker's text: "finished <age> ago" while the
+// stamp is set, "" when zero — zero means never finished, and the reversal
+// (un-finish) must not read as history after a press (issue #158).
+func finishedAge(now time.Time, at int64) string {
+	if at == 0 {
+		return ""
+	}
+	return "finished " + since(now, time.UnixMilli(at))
+}

backend/internal/web/static/admin.css

@@ -653,6 +653,22 @@
   margin-left: auto;
 }
 
+/* The finish confirm is the one calm row on the admin sheet: a reversible
+   move wears the recessed ash, never the remove wash above, and its
+   affirmative takes the sheet's patina accent (issue #158). */
+.admin-sheet .confirm-row.calm {
+  background: var(--ash);
+}
+
+.admin-sheet .confirm-row.calm span {
+  color: var(--paper-dim);
+}
+
+.admin-sheet .confirm-row.calm .go {
+  background: var(--patina);
+  color: var(--ink);
+}
+
 .admin-sheet .tbl.series .row-msg {
   grid-column: 1 / -1;
   margin-top: 6px;

backend/internal/web/templates/series-detail.html

@@ -39,6 +39,22 @@
   <div class="field"><button class="ghost danger" hx-post="/admin/series/{{.Key}}/remove" hx-target="#detail-meta" hx-confirm="Removes this series and its stored cover. No Reader has it bookmarked; one re-bookmarking it recreates the row.">Remove</button></div>
 </div>
 {{end}}
+{{if .Finished}}
+<div class="dform">
+  <div class="field"><button type="button" class="ghost" hx-post="/admin/series/{{.Key}}/unfinish" hx-target="#detail-meta" hx-swap="outerHTML">Un-finish</button></div>
+</div>
+{{else}}
+<div class="dform">
+  <div class="field"><button type="button" class="ghost" onclick="document.getElementById('confirm-finish').hidden = false">Finish</button></div>
+  <div class="confirm-row calm" id="confirm-finish" role="group" aria-live="polite" hidden>
+    <span>Mark this Series finished?</span>
+    <div>
+      <button type="button" class="go" hx-post="/admin/series/{{.Key}}/finish" hx-target="#detail-meta" hx-swap="outerHTML">Finish</button>
+      <button type="button" onclick="document.getElementById('confirm-finish').hidden = true">Cancel</button>
+    </div>
+  </div>
+</div>
+{{end}}
 {{end}}
 
 {{/* series-detail-meta is the meta line, and the answer a Check now or
@@ -54,6 +70,7 @@
   <span>{{.Readers}} readers</span>
   {{if .Corrected}}<span class="mark">{{.Corrected}}</span>{{end}}
   {{if .Pending}}<span class="mark">{{.Requested}}</span>{{end}}
+  {{if .FinishedSince}}<span class="mark">{{.FinishedSince}}</span>{{end}}
   {{if .Unpollable}}<span class="mark">unpollable</span>{{end}}
   {{if .NoCover}}<span class="mark">no cover</span>{{end}}
   {{if .Orphan}}<span class="mark">orphan</span>{{end}}

backend/internal/web/templates/series-list.html

@@ -47,7 +47,7 @@
   <span class="c-ch">{{.Ch}}</span>
   <span>{{.Age}}</span>
   <span class="c-rd">{{.Readers}}</span>
-  <span class="c-note">{{range .Notes}}<span class="mark">{{.}}</span>{{end}}{{if .More}}<span class="mark mark-faint">+{{.More}}</span>{{end}}</span>
+  <span class="c-note">{{range .Notes}}<span class="mark">{{.}}</span>{{end}}{{if .More}}<span class="mark mark-faint">+{{.More}}</span>{{end}}{{if .Finished}}<span class="mark mark-faint">finished</span>{{end}}</span>
   <span class="c-act">{{if .CanPoll}}<a class="ghost act" hx-post="/admin/series/{{.Key}}/poll" hx-target="closest .trow" hx-swap="outerHTML" hx-vals='{"band":{{if .Band}}1{{else}}0{{end}}}' href="#">Check now</a>{{end}}{{if .CanRemove}}<button class="ghost danger" hx-post="/admin/series/{{.Key}}/remove" hx-target="closest .trow" hx-swap="outerHTML" hx-include="#filterbar" hx-vals='{"band":{{if .Band}}1{{else}}0{{end}}}' hx-confirm="Removes this series and its stored cover. No Reader has it bookmarked; one re-bookmarking it recreates the row.">Remove</button>{{end}}</span>
   {{if .RemovalRefused}}<span class="row-msg">a Reader has bookmarked this Series again</span>{{end}}
 </div>

backend/web_test.go

@@ -3428,6 +3428,169 @@ func TestAdminSeriesDetailCorrectionMarker(t *testing.T) {
 	}
 }
 
+// The finish control lives on the Series detail page only: a neighbouring
+// Finish in the fifty-row grid is not a harmless read the way Check now is,
+// so the list row renders the state as a mark and offers no control to set
+// it. On the detail page the press is confirm-gated — the opener does not
+// post and the only finish POST sits inside the confirm row, targeting the
+// meta fragment it will swap (#158).
+func TestAdminSeriesDetailFinishControl(t *testing.T) {
+	router, st := newWebTestServer(t, testConfig())
+	seed(t, st, store.Bookmark{
+		Key: "asura:solo", Site: "asura", SeriesID: "solo",
+		Title: "Solo", Kind: store.KindManga,
+	})
+
+	body := seriesDetailPage(t, router, st, "asura:solo")
+	for _, want := range []string{
+		`id="confirm-finish"`,
+		"Mark this Series finished?",
+		`hx-post="/admin/series/asura:solo/finish"`,
+		`hx-target="#detail-meta"`,
+	} {
+		if !strings.Contains(body, want) {
+			t.Errorf("detail page lacks %q:\n%s", want, body)
+		}
+	}
+	// The press travels through the confirm row: the page's only finish POST
+	// sits after the row's id (inside the row), and the opener that reveals
+	// it posts nothing.
+	if opener := strings.Index(body, `id="confirm-finish"`); opener < 0 ||
+		strings.Index(body, `hx-post="/admin/series/asura:solo/finish"`) < opener {
+		t.Errorf("finish POST is not inside the confirm row:\n%s", body)
+	}
+	if strings.Count(body, `hx-post="/admin/series/asura:solo/finish"`) != 1 {
+		t.Errorf("finish POST count = %d, want exactly one (the affirmative):\n%s",
+			strings.Count(body, `hx-post="/admin/series/asura:solo/finish"`), body)
+	}
+
+	// The list row displays nothing to set: no finish control, no finished
+	// mark on an unfinished Series.
+	list := adminSeriesPage(t, router, st, "")
+	for _, banned := range []string{
+		`/admin/series/asura:solo/finish`,
+		`/admin/series/asura:solo/unfinish`,
+		`mark-faint">finished`,
+	} {
+		if strings.Contains(list, banned) {
+			t.Errorf("list row carries %q:\n%s", banned, list)
+		}
+	}
+}
+
+// The finish route is the owner's one writer: a finish press stamps
+// finished_at and answers with the swapped detail-meta fragment carrying the
+// "finished <age> ago" mark, and an un-finish press writes zero and answers
+// with a fragment that has no finished line. A malformed key is a 400 and an
+// unknown one a 404, like the other Series mutations (#158).
+func TestSeriesFinishRoute(t *testing.T) {
+	st, dsn := newTestStoreURL(t)
+	db, err := sql.Open("pgx", dsn)
+	if err != nil {
+		t.Fatalf("open %s: %v", dsn, err)
+	}
+	defer db.Close()
+	seedSeriesRow(t, st, db, seriesRowSeed{key: "asura:solo", url: "u", checkedAt: 9000, bookmarks: 1})
+	router := newRouter(st, testConfig())
+	cookie := sessionCookie(t, st)
+
+	for path, want := range map[string]int{
+		"/admin/series/solo/finish":  http.StatusBadRequest,
+		"/admin/series/ghost:x/finish": http.StatusNotFound,
+	} {
+		req := httptest.NewRequest(http.MethodPost, path, strings.NewReader(""))
+		req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+		req.AddCookie(cookie)
+		rr := httptest.NewRecorder()
+		router.ServeHTTP(rr, req)
+		if rr.Code != want {
+			t.Errorf("POST %s: status = %d, want %d", path, rr.Code, want)
+		}
+	}
+
+	// A finish press stamps and answers with the swapped meta fragment whose
+	// mark reads "finished just now".
+	req := httptest.NewRequest(http.MethodPost, "/admin/series/asura:solo/finish", strings.NewReader(""))
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	req.AddCookie(cookie)
+	rr := httptest.NewRecorder()
+	router.ServeHTTP(rr, req)
+	if rr.Code != http.StatusOK {
+		t.Fatalf("POST finish status = %d, want 200 (body %s)", rr.Code, rr.Body.String())
+	}
+	body := rr.Body.String()
+	if !strings.Contains(body, `id="detail-meta"`) {
+		t.Errorf("finish answer is not the meta fragment:\n%s", body)
+	}
+	if !strings.Contains(body, `<span class="mark">finished `) {
+		t.Errorf("finish answer lacks the fresh finished mark:\n%s", body)
+	}
+	var at int64
+	if err := db.QueryRow(`SELECT finished_at FROM series WHERE site = 'asura' AND series_id = 'solo'`).Scan(&at); err != nil {
+		t.Fatalf("read finished_at: %v", err)
+	}
+	if at == 0 {
+		t.Error("finished_at = 0, want the finish stamp written")
+	}
+
+	// The page after the press offers the instant reversal, no confirm.
+	body = seriesDetailPage(t, router, st, "asura:solo")
+	if !strings.Contains(body, `hx-post="/admin/series/asura:solo/unfinish"`) {
+		t.Errorf("finished detail page lacks the un-finish control:\n%s", body)
+	}
+	if strings.Contains(body, "Mark this Series finished?") {
+		t.Errorf("finished detail page still carries the confirm row:\n%s", body)
+	}
+
+	// An un-finish press fires instantly and writes zero.
+	req = httptest.NewRequest(http.MethodPost, "/admin/series/asura:solo/unfinish", strings.NewReader(""))
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	req.AddCookie(cookie)
+	rr = httptest.NewRecorder()
+	router.ServeHTTP(rr, req)
+	if rr.Code != http.StatusOK {
+		t.Fatalf("POST unfinish status = %d, want 200 (body %s)", rr.Code, rr.Body.String())
+	}
+	body = rr.Body.String()
+	if !strings.Contains(body, `id="detail-meta"`) {
+		t.Errorf("unfinish answer is not the meta fragment:\n%s", body)
+	}
+	if strings.Contains(body, `<span class="mark">finished `) {
+		t.Errorf("unfinish answer still carries the finished mark:\n%s", body)
+	}
+	if err := db.QueryRow(`SELECT finished_at FROM series WHERE site = 'asura' AND series_id = 'solo'`).Scan(&at); err != nil {
+		t.Fatalf("read finished_at after un-finish: %v", err)
+	}
+	if at != 0 {
+		t.Errorf("finished_at = %d after un-finish, want 0", at)
+	}
+}
+
+// A finished Series shows its state in the list row as a faint mark, and the
+// row offers no control to set or clear it — the reversal lives on the
+// detail page, its press, and the mark is the whole of the row's share
+// (#158).
+func TestAdminSeriesListShowsFinished(t *testing.T) {
+	router, st := newWebTestServer(t, testConfig())
+	seed(t, st, store.Bookmark{
+		Key: "asura:solo", Site: "asura", SeriesID: "solo",
+		Title: "Solo", Kind: store.KindManga,
+	})
+	if err := st.SetSeriesFinished("asura", "solo", time.Now().Add(-2*time.Minute).UnixMilli()); err != nil {
+		t.Fatalf("SetSeriesFinished: %v", err)
+	}
+
+	body := adminSeriesPage(t, router, st, "")
+	if !strings.Contains(body, `<span class="mark mark-faint">finished</span>`) {
+		t.Errorf("list row lacks the finished mark:\n%s", body)
+	}
+	for _, banned := range []string{"solo/finish", "solo/unfinish"} {
+		if strings.Contains(body, banned) {
+			t.Errorf("list row offers %q:\n%s", banned, body)
+		}
+	}
+}
+
 // The series URL repair validates with the poller's own fetch gate and
 // answers 400 before anything reaches the store; a URL that passes the gate
 // is stored where an Upsert would have ignored it. The request performs no