Fantastic Four (comic book) for the Canadian reprints. British publication of the series began in the black and white anthology title "Mystic" in the 1960s. In 1972, the Fantastic Four's adventures were published starting with issue 1 of the US comic in "Mighty World of Marvel" alongside Spider-Man and Hulk reprints when Marvel Comics began its imprint Marvel UK. In 1976 the feature was moved to Marvel UK's "The Titans" to revive flagging sales, starting with issue #27. But after just a few months the feature was removed from "The Titans" (replaced by The Avengers) to form part of the line up of the
Fantastic Four (comic book) Reed and Sue to join that team after Engelhart had written them out of "Fantastic Four". Yet by "The Avengers" #300, where they were scheduled to join the team, Simonson was told the characters were returning to "Fantastic Four". This led to Simonson quitting "The Avengers" after that issue. Shortly afterward, he was offered the job of writing "Fantastic Four". Having already prepared a number of stories involving the Avengers with Reed and Sue in the lineup, he then rewrote these for "Fantastic Four". Simonson later recalled that working on "Fantastic Four" allowed him the latitude to use original Avengers