Yes, it was. 'Fifty Shades of Grey' started as a piece of fan fiction based on the 'Twilight' series. The author, E. L. James, initially wrote it as fan - based work, which then evolved into the well - known 'Fifty Shades' trilogy.
I don't know what the complete version of " 58 Shades of Grey " is. It could be a name or a novel. If you can provide more information, I will try my best to answer your questions.
Yes, it was quite popular. 'Fifty Shades of Grey' started as fanfiction based on the 'Twilight' series. It attracted a large number of readers because of its steamy and somewhat controversial storylines. The idea of exploring a BDSM - themed relationship in a more mainstream fictional context was something that hadn't been done on such a large scale before in this type of popular literature. This led to a lot of buzz and interest, not only among fans of the original 'Twilight' but also among a wider audience looking for a different kind of romantic and erotic story.
The ending of Fifty Shades of Grey is kind of a closure where Anastasia and Christian reach a point of understanding and acceptance. There's a sense of hope and stability for them. However, some might find it a bit predictable or not fully satisfying, depending on their expectations.