In "The Wheel of Time" book series, Tel'aran'rhiod is a dream world that exists in close proximity to the real world. Objects and physical locations that do not frequently change in the real world have parallels in Tel'aran'rhiod. Ordinary people can occasionally slip into Tel'aran'rhiod, and events that occur within this dream world have physical consequences. A person that dies in Tel'aran'rhiod will never wake up again, and in several cases it is shown that physical injuries gained there persist to the waking world. Tel'aran'rhiod can be controlled similar to a lucid dream, and several characters in the series can enter and manipulate Tel'aran'rhiod at will. "Paprika" (1993) by Yasutaka Tsutsui is a science fiction novel that involves entering dream worlds using technology. In the book, dream monitoring and intervention as a means of treating mental disorders is a developing new form of psychotherapy in the near future. Unrest ensues when a new psychotherapy dream-analysis device is stolen, allowing the assailant to enter and manipulate people's dreams. In the feminist science fiction novel "The Kin of Ata Are Waiting for You", the Kin of Ata maintain the real world through their dreaming, making the real world a form of dream. In the 1939 movie, Oz from "The Wonderful Wizard of Oz" was altered from a fantasy world (in the novel) to a dream world of Dorothy's; characters who were independent inhabitants of Oz were transformed into dream parallels of introduced Kansas characters. In "The Matrix", Neo and the rest of the humans live inside a dream world. Their brains are hooked up to a computer network that creates this dream world. However, some may argue that this is not a dream world, as it seems completely normal and indistinguishable from reality (aside from time differences). In the 1980s, the "Nightmare on Elm Street" series of horror films introduced a dark dream realm inhabited by the supernatural serial killer Freddy Krueger. In the movie "Sharkboy and Lavagirl" the main characters enter a world dreamt up by a small boy in order to save the real world. Down Town is the land of nightmares where all people who are in comas go in the movie "Monkeybone". Dreamworlds also appear in "Total Recall" and "Vanilla Sky". "Paprika" (2006) is an anime film adaptation of the 1993 novel of the same name, which involves entering and manipulating dream worlds using dream-analysis devices.