Is there a horrifying screaming inside your head? Do you want it to get louder? Well, you're in luck! The Book of Bill , the #1 New York Times bestseller, is back in a limited collector's edition that will make all the other books on your shelf jealous. This time, Bill Cipher has blessed you with rare special extras, including: A cursed glow-in-the-dark collector's slipcase, and an exclusive cover variant in Undead Green! A beautiful double-sided poster! A sticker sheet of Bill tattoos! A collection of four keepsake postcards! Beware: This book travels to dimensions meant for older readers.