The female mutant only known as Beautiful Dreamer was among the few members of the Morlocks to survive the Marauders' mutant massacre, during which most members of her community were killed. Since the original X-Factor team rescued her from the massacre, Beautiful Dreamer has returned to the tunnels beneath New York, and has kept a low profile. Beautiful Dreamer's real name and her past prior to joining the Morlocks remain unknown. She followed the terrorist Morlock leader Masque for a time and committed criminal acts by manipulating others with her mental powers at his behest. However, Beautiful Dreamer's primary motivation for doing so, as with most of her fellow Morlocks, is presumed to be her desire for company and community. Beautiful Dreamer is one of the 198 mutants who have retained their powers after the events of M-Day.