Aliteraryprincess's Unfinished Series
To match with my list of series I've actually finished, here is a list of 100 books in series that I've started but haven't finished. The reasons range from I didn't like the books to I just haven't gotten around to getting the next book to I literally forgot all about the series.
avg. score: 14 of 100 (14%)
required scores: 1, 5, 10, 14, 21