diff --git a/README b/README
index 1ed644a..466bf92 100644
--- a/README
+++ b/README
@@ -31,9 +31,9 @@ python3 main.py
 MAYBE-1: when moving a book in a series (which is part of 2 series), do we pop-up offer to move parent/child series orders as well to match (think Thomas Covenant)
 
 #### TODOS (next 22):
-TODO-3:		when remove a Parent book from a series:
+TODO-3:		when remove a Parent book from a series (condition in code marked with BUG):
 			- popup with: remove all sub books from series too?
-TODO-4: 	removing a subbook from a series
+TODO-4: 	removing a subbook from a series (condition in code marked with BUG)
 			- dont allow it & say remove sub book form parent book before we can act on this. OR:
 			- popup with: this is a subbook, you want to remove the parent & all its sub books from the series? 
 TODO-5:		should deleting really just ask if want to mark it as SOLD?
diff --git a/main.py b/main.py
index 3de473e..cbf6868 100644
--- a/main.py
+++ b/main.py
@@ -231,7 +231,7 @@ book_schema = BookSchema()
 @app.route("/search", methods=["POST"])
 def search():
     if 'InDBox' in request.form:
-		# removes already loaned books from list of books to loan out 
+        # removes already loaned books from list of books to loan out 
         books = Book.query.outerjoin(Book_Loan_Link).filter(Book.title.ilike("%{}%".format(request.form['term'])),Book_Loan_Link.loan_id==None).all()
         InDBox=1
     else:
@@ -501,19 +501,32 @@ def book(id):
                 if 'author-' in el:
                    book.author.append( Author.query.get( request.form[el] ) )
 
-            print( "DEBUG: bsl={}".format( book.bsl ))
-            # delete all bsls
-            db.engine.execute("delete from book_series_link where book_id = {}".format( book.id ) )
-            cnt=1
-            for field in request.form:
-                if 'bsl-book_id-' in field and field != 'bsl-book_id-NUM':
-                    cnt=int(re.findall( '\d+', field )[0])
-                    sql="insert into book_series_link (book_id, series_id, book_num) values ( {}, {}, {} )".format( request.form['bsl-book_id-{}'.format(cnt)], request.form['bsl-series_id-{}'.format(cnt)], request.form['bsl-book_num-{}'.format(cnt)])
-                    db.engine.execute( sql )
-                    cnt=cnt+1
+            still_in_series=0
+            if book.IsParent():
+                for field in request.form:
+                    if 'bsl-book_num-' in field and field != 'bsl-book_num-NUM' and request.form[field] == 'PARENT':
+                        still_in_series=1
+
+            if book.IsChild() or (book.IsParent() and not still_in_series):
+                if book.IsParent():
+                    print ( "BUG: Houston we have a problem, need to deal with parent book being moved out of series, without its subbooks... (IGNORING series change)" )
+                else:
+                    print ( "BUG: Houston we have a problem, need to deal with child book being moved out of series, without its parent... (IGNORING series change)" )
+            else:
+                # delete all bsls
+                db.engine.execute("delete from book_series_link where book_id = {}".format( book.id ) )
+
+                cnt=1
+                for field in request.form:
+                    if 'bsl-book_id-' in field and field != 'bsl-book_id-NUM':
+                        cnt=int(re.findall( '\d+', field )[0])
+                        if book.IsParent():
+                            sql="insert into book_series_link (book_id, series_id) values ( {}, {} )".format( request.form['bsl-book_id-{}'.format(cnt)], request.form['bsl-series_id-{}'.format(cnt)] )
+                        else:
+                            sql="insert into book_series_link (book_id, series_id, book_num) values ( {}, {}, {} )".format( request.form['bsl-book_id-{}'.format(cnt)], request.form['bsl-series_id-{}'.format(cnt)], request.form['bsl-book_num-{}'.format(cnt)])
+                        db.engine.execute( sql )
+                        cnt=cnt+1
 
-            ## TODO:
-            # what about series?, subbooks?, loan?, etc.
             db.session.commit()
             st.SetMessage( "Successfully Updated Book (id={})".format(id) )
         else:
@@ -531,7 +544,7 @@ def book(id):
     genre_list = GetGenres()
 
     book_s = book_schema.dump(book)
-    print( book.parent )
+    print( "parent={}".format(book.parent ))
     return render_template("book.html", b=book, books=book_s, book_form=book_form, author_list=author_list, genre_list=genre_list, page_title=page_title, alert=st.GetAlert(), message=st.GetMessage(), poss_series_list=ListOfSeriesWithMissingBooks() )
 
 def GetCount( what, where ):
diff --git a/templates/book.html b/templates/book.html
index 300275e..02e8e9d 100644
--- a/templates/book.html
+++ b/templates/book.html
@@ -249,6 +249,7 @@ function AddAuthorToBook(num) {
 								Book {{ SeriesBookNum( s.id, books.id ) }} of {{s.num_books}} in&nbsp; <a href=/series/{{s.id}}>{{s.title}}</a>
 							</div>
 						{% else %}
+							{% set hiddens.txt=hiddens.txt+"<input type='hidden' name='bsl-book_num-{}' value='PARENT'>".format(loop.index) %}
 							<div id="series-minus-div-{{loop.index}}" class="input-group-prepend">
 								<button id="series-minus-but-{{loop.index}}" class="btn btn-outline-danger" type="button" onClick="RemoveBookFromSeries('series-div-{{loop.index}}')">
 									<i class="fas fa-minus"></i>