Let’s all take a second to admit that children’s books are weird. Remember when the mother in Love You Forever drives to her son’s house at night and climbs through his window to declare her love to him? Or how about the classic I Wish Daddy Didn’t Drink So Much? Even the children’s books you’ve always loved can start to seem strange if you think about them too much. (The Wonderful Wizard of Oz: childhood dream world or drug-induced coma?)

It makes sense, then, that many of the authors of your favorite kids’ books also published other work that was definitely not the type of literature your parents would have approved of: