This is a must-have for any TMNT fan! The Teenage Mutant Ninja Turtles Saturday Morning Adventures #4 features an autograph by the one and only Kevin Eastman. This issue number 4 is a part of the adventure genre and falls under the US Comics tradition. The character mentioned is Mutants and the series title is Teenage Mutant Ninja Turtles: Saturday Morning Adventures. It is a great addition to any comic book collection.