Modern fantasy is rooted in traditional literature, but has an identifiable author. Modern fantasy also includes modern fairy tales like those from Hans Christian Andersen. In general, modern fantasy stories involve magic, the "quest," and/or "good versus evil." Fantasy creates an alternative universe, which operates on laws different than our own. Sub-genres of fantasy include animal fantasy, quest fantasy, machine fantasy, toy and doll fantasy, time fantasy, comic fantasy, high fantasy, and other world fantasy. High fantasy are complex stories characterized by recurring themes and often take place in created or imaginary worlds