diff --git a/BUGs b/BUGs
index 0bcd9ef..bdfc0d8 100644
--- a/BUGs
+++ b/BUGs
@@ -11,3 +11,11 @@ BUG-31:     series does not have 'series_num', so a book in 2 series, means he o
             a larger one, and numbering implies the inner (smaller number), and
             outer has explicity overall ordering of books in both series, so
             should be ok?
+
+BUG-33:     adding diamond throne to sparhawk novels -> I think I'm readding bsl links -> official error:
+                book(671) is Elenium (parent_book), series(49) is Elenium series...
+                DETAIL:  Key (book_id, series_id)=(671, 49) already exists.
+
+                [SQL: INSERT INTO book_series_link (book_id, series_id, book_num) VALUES (%(book_id__0)s, %(series_id__0)s, %(book_num__0)s), (%(book_id__1)s, %(series_id__1)s, %(book_num__1)s), (%(book_id__2)s, %(series_id__2)s, %(book_num__2)s), (%(book_id__3)s, %(series_id__3)s, %(book_num__3)s)]
+                [parameters: {'book_id__0': 671, 'book_num__0': None, 'series_id__0': '141', 'book_id__1': '672', 'book_num__1': '1', 'series_id__1': '141', 'book_id__2': 671, 'book_num__2': None, 'series_id__2': '49', 'book_id__3': '672', 'book_num__3': '1', 'series_id__3': '49'}]
+