X-Men #31

Published in April 1967, X-Men #31 stands as a notable entry in the original Silver Age run of the series. Written by Roy Thomas with cover art and interior illustrations by Werner Roth, the issue continues the creative evolution of the title following the early departure of Jack Kirby. During this period, the series struggled to find a consistent audience, and the narrative focus often shifted toward establishing stronger character dynamics and exploring the escalating tensions between mutants and the human population.

The issue features the iconic villain Banshee, a character who had been introduced just a few issues prior, and centers on the team's ongoing conflicts with the Factor Three organization. Roth’s artistic contribution is frequently cited by collectors for its clean, classic aesthetic, which served as a bridge between the founding era of the X-Men and the more experimental storytelling that would arrive under Neal Adams shortly thereafter. It remains a testament to the mid-sixties Marvel era, capturing the experimental, character-driven spirit that defined the publisher's output during that decade.