X-Men #17

Published in February 1966, X-Men #17 serves as a classic example of the Silver Age of comic books, arriving during a time when Stan Lee and Jack Kirby were rapidly expanding the Marvel Universe. The issue focuses on the team's confrontation with the Vanisher, a mutant teleporter who first appeared in the title's second issue. This period of the series explored the ongoing struggle of the original five X-Men to define their roles as protectors of humanity while dealing with the interpersonal tensions inherent in their isolation at Professor Xavier's school.

The interior art was provided by Werner Roth, who took over pencils under the pseudonym Jay Gavin, working from layouts by Jack Kirby. Roth's style provided a more grounded, humanistic aesthetic compared to the bombastic energy of earlier issues, which helped emphasize the personal development of characters like Cyclops and Jean Grey. While the story follows the traditional monster-of-the-week formula prevalent in the mid-1960s, it remains a notable chapter in the series' evolution toward the more complex narrative arcs that would define the franchise in later decades.