It by Stephen King
I know that this book doesn't seem very retro or rockabilly, but it takes place in a few different eras. The main two stories are in 1958 and in 1985. I love this novel. It is creepy and its very relate-able - which is why people really like it. In case you've been in a cave, this book is about a group of friends who take on the task of destroying It (who shows up as Pennywise the clown). I don't want to give too much away if you have never seen the movie or read the book, but in the book you actually get more info on the background of Dick Halloran from 'The Shining'.