Leave it to R.L. Stein --- who's been called the Stephen King of children's and young adult literature --- to turn a fun babysitting job into a thing of nail-biting terror. This is the premise of DON'T STAY UP LATE, Stein's first Fear Street novel in nearly 20 years, and believe us --- it contains just as much twisting, eerie surprises as the other books in the series. In the below interview, we talked to Stein about his new book, the reason he stepped away from his original genre of choice (humor) and what it's like to have Jack Black play him in an upcoming movie. See his answers, here!