The blog Awful Library Books recently featured what I consider to be the world’s most terrifying children’s book: Don’t Make Me Go Back, Mommy: A Child’s Book About Satanic Ritual Abuse:

It would seem that Satanists have their own version of “What happens in Vegas, stays in Vegas”:

Form follows function in this book, with dreadful pencil-crayon illustrations matching the dreadful prose:

For more, see these articles in Awful Library Books: Satan for Kids and Satan for Kids, Part 2.