I read an earlier question on the same/similar topic with interest. I also read author's guild of America sharing to authors to keep the copyright with them.
While it is much easier to get Music Recording companies shenanigans or Movie Studios on the web where they cheated actors, singers, song-writers etc. of their valid contractual agreements.
The book publishers, on the other hand seem to have a good life under the radar.
Have there been any famous/in-famous cases about Publishers arm-twisting fiction authors and denying them the fruitful rights or is life much more wonderful for authors than before ?