The Brothers Grimm Fairy Tales

Originally, Grimm's Fairy Tales were not meant for children. The stories routinely included sex, violence, incest, and copious footnotes. Worse yet, they didn't even have illustrations. Initially aimed at adults, the early editions of Nursery and Household Tales contained remarkably dark elements. In its original version, for example, Rapunzel gets pregnant by the prince after a casual fling. In Cinderella, the stepsisters cut off their toes and heels to try to fit into the slipper. These sort of scenes (and many others) were eventually revised once the stories became popular among children. But I won't cut the corners for you Wattpadders.