Jack is a world inside a world. A dream inside a dream. Einstein inside Newton. Hemingway inside Aristophanes. A noun inside a verb. An idea inside an acorn. It is the knot that we call consciousness. Jack exists in a different dimension. Somewhere between reality and fantasy. Between the waking state and sleep. Nightmares on Jack are a reality. They exist. Monsters appear and crawl out from under children's beds. Time is a prankster and doubles back on you just when you think you have escaped. Jack is especially difficult for children. Who become entranced by their dreams and have trouble separating the world in their mind and the world – out there. On Jack 'out there' is an illusion.