 The conceit was dropped, and the group did not reassemble in the next issue.More than three decades after Jack Frost's final appearance, Marvel launched "The Invaders" in 1975, an intentionally nostalgic comic featuring star characters from the Golden Age — Captain America, Bucky Barnes, the Human Torch and the Sub-Mariner — in World War II-era adventures.Writer and editor Roy Thomas wanted to expand the franchise, so he created a second superteam — the Liberty Legion — with a group of second-string Golden Age heroes including Jack Frost, along with Miss America, the Whizzer, the Patriot, the Thin Man, Red Raven and the Blue Diamond.