Watchmen by Dan Brereton. Now widely regarded as a major work of postmodern literature. Ian Thomson stated that the heroes in Watchmen almost all share a nihilistic outlook. He wrote that the story "develops its heroes precisely in order to ask us if we would not in fact be better off without heroes".
Amazing student created American literature timeline, group research project, common core http://www.teacherspayteachers.com/Product/American-Literature-Movements-Poster-Project-From-Rationalism-to-Postmodernism-60391
The Ecology of Wonder in Romantic and Postmodern Literature (Hardcover)