Mutant X is a comic book published by Marvel Comics between 1998 and 2001, featuring Havok, a mutant and former member of the X-Men, who is transported into a parallel dimension. It was written by Howard Mackie and inked by Andrew Pepoy, with a series of different pencilers. The "Mutant X" universe (Earth-1298) is a reimagination of the Earth-616 universe. In this continuum, Scott Summers was captured along with his parents by the Shi'ar and only Alex (Havok) escaped, allowing him to be the eventual leader of the X-Men. Originally, the highlighted difference between the Mutant X universe and Earth-616 was that mutants have come to be accepted by the overwhelming majority of humanity, and anti-mutant sentiments are regarded as outdated. However, a retcon in Mutant X #15 asserts that hatred against mutants is even stronger than in Earth-616, and that Havok had simply failed to notice this. Another significant difference in the Mutant X universe is that the mutant gene is not present at conception, and instead appears due to random gene mutations that can happen at any age. Publication history Mutant X was originally intended to be a 12-issue limited series, but due to unexpectedly high sales it was extended to an ongoing series. The series lasted for 32 issues and three annuals before it ended. Plot After Greystone, a member of Havok's X-Factor team, develops temporal insanity, he attempts to build a time machine to return to his timeline and be reunited with his mother who, in all probability, does not exist anymore. Havok attempts to stop him, but the machine explodes, supposedly killing both men. However, at the instant of Havok's death, a Havok from an alternate reality also dies after being shot in the chest by a Sentinel. Havok's spirit finds its way into his counterpart's body and he wakes up in the Mutant X Universe. Here, he is the leader of a mutant team of heroes dubbed The Six (who are altered versions of his friends from Earth-616), the husband of Madelyne Pryor, and the father of Scotty Summers. At first he tries to convince the others of the Six to help him return to his universe, but they all still believe him to be the Havok of their universe and insist that he is lying about coming from another dimension as a way of getting back at Madelyne for some unspecified injury. Havok