Both R.L. Stine and Marc Brown are iconic in the field of children’s literature. Stine is best known for haunting millions of children for decades with the nightmarish imagery of his Goosebumps and Fear Street franchises, while Marc Brown is best known as the creator of Arthur, both the book series and the Emmy-winning television show. In the video above, the two discuss the origins of their new picture-book collaboration, Mary McScary, and what it was like working together.