In some of my comics time travel has presented itself as devices of several plots. One story line involves the future changing drastically and the descendant of the present day hero goes back in the wrong date and warns the hero. As a result, future forces from the same time reality have also come back to prevent the rise of the resistance. A battle throughout time occurs. Another involves the same character using the time device given in previous story line to personally see the history of an era for a report. But his presence creates an alternate reality he must prevent. Because it is superhero comics, I have some characters who can manipulate the flow of time and with enough energy, even travel time, though very rarely. In the later part of the series in question, I decided in order to incite a dark transformation in the main character, his girlfriend needed to be killed off. Because of this, his superhuman energized soul is corrupted by anger, hate, and revenge. Like Batman, he is now on the hunt for past and present enemies as well as those responsible not looking to just defeat them, but to kill them, causing him to be a monster. With this story line, time travel is indeed involved, but I don't want to use it as the Dues Ex Machina by going back and preventing the girl's death. I want this story line to be the end of all time travel so I won't have to use it as a cop out. There are a couple things here. One is time travel is accomplished with highly advanced technology that was invented far into the future. Two is one of ten gems of the universe that gives the user control of time. I'm probably going to make it where the time travel tech is all destroyed and the gem is lost after the main character defeats his demons, so he won't be able to cop out. I made it to where it lines up with the continuity of previous stories and involve clones, so I don't need to cop out, I just need to know how to kill of time travel permanently as a plot device or Dues Ex Machina. Also, thank you for having the patience to read all of this. Lol.