2024-10-20 00:00:00 Serial Killer Coloring Book If you are looking for a creative and fun activity after a long, hard day of work, our free coloring book will be the best idea for you. It features art that will be so much more satisfying to color. Coloring is a great tool to relieve stress and relax the mind. Moreover, our horror coloring book can be incredibly relaxing and as you color these grown-up coloring pages, you can let your mind wander or simply concentrate on your coloring. Afterward, you'll likely feel refreshed and ready to get on with your tasks for the day.