6This book is completely the best choice for anyone who has a big curiosity and interest about various famous creepy characters that the world has witnessed and coloring.If you are getting bored with the normal stories of life and want something new to refresh, you definitely should put this Serial Nightmare coloring book up right away. Through several pages of this horror book, you will experience exciting and freaking out hours with various standout portraits of several monsters that were considered to be symbols of death to the world, and have so much fun besides watching these terrifying beasts on screens.