Superman and Wonder Woman – the Hidden Killer is a special-edition "humanitarian comic book" featuring Superman and Wonder Woman that promotes "landmine awareness" among children, particularly from countries where there are active landmines after war. The free comic book was published from 1993 through 1999 by DC Comics, the United States Department of Defense, the Mine Action Center (MAC), the United Nations International Children's Emergency Fund (UNICEF), and participating non-governmental organizations (NGOs). In the comic book, Superman and Wonder Woman are featured as educators who are teaching children about the dangers of landmines. Source: Wikipedia (en)