I finally separated the Baby-Sitters Club review series into a different playlist from the Baby-Sitters Little Sister review series. Starting with Little Sister 8 (and Baby-Sitters 35), Little Sister jumps from being an occasional series to a "one book a month series" which ends up outlasting the main series.
This is also the point where author Ann Martin gives up the ghost...or should I say, picks up the ghostwriters?
With both series, I'm three books away from reaching a book that I don't have. I'll either buy more books to build up my collection, or just read whatever books I have and stop the reviews there.