X-Men #30

Published by Marvel Comics in March 1967, X-Men #30 represents a transitional period in the original run of the series. Written by Roy Thomas with cover art and interior pencils by Werner Roth, the issue continues the creative team's efforts to balance superhero action with the interpersonal drama of the teenage mutants. At this stage in the publication history, the X-Men were still struggling to find the same level of runaway popularity as other Marvel titles like The Fantastic Four or The Amazing Spider-Man.

The narrative follows the team as they encounter the group known as the Factor Three, a recurring antagonist force during the mid-1960s run. Werner Roth, who often worked under the pseudonym Jay Gavin, provided a clean, classic aesthetic that defined the look of the X-Men following Jack Kirby’s departure from the title. While not considered one of the series' major key issues, it is recognized by collectors as a quintessential example of the Silver Age mutant mythos, capturing the tone and visual style that kept the series afloat before its eventual transition into reprints and its later 1970s revival.