According to Goodreads, a number of the longest books I’ve read in my entire life are from – excuse my shudder – the notorious Twilight saga.
Really fun story there: I read all the books simply because this girl in my class was badmouthing The Hunger Games by Suzanne Collins (which was my favorite trilogy at the time) even though she never even bothered to read any of the books, and in retaliation, I decided to read her favorite series (i.e. the Twilight saga) so that I can point out every flaw in every
damn book. Lo and behold, Lady Luck was on my side and it turned out that the entire saga was all kinds of awful and cringe and oh-god-I-can’t-believe-trees-died-in-order-to-produce-copies-of-this-trash.