X-Men #43

Published in April 1968, X-Men #43 arrived during a transitional period for the title, as the series struggled with declining sales before its eventual shift into reprint-only status later that year. This issue was written by Roy Thomas, who had taken over the scripting duties from Stan Lee, and featured artwork by Werner Roth under the pseudonym Jay Gavin. The narrative continues the team's ongoing struggle for acceptance while dealing with the fallout of the arrival of the mutant known as Cyclops's brother, Havok, providing a bridge between the classic Silver Age character dynamics and the more complex storylines that would follow in later decades.

The creative direction of this era was heavily influenced by the attempt to ground the X-Men in more soap-opera-style interpersonal drama as the title neared the end of its original run. Werner Roth’s clean, traditional illustration style served as a contrast to the more experimental visuals seen in other Marvel titles of the period, though it struggled to capture the same immediate market excitement. While the issue is now valued by collectors for its role in the evolution of the X-Men mythos and its connection to the introduction of major mutant characters, it was viewed at the time as part of a series searching for a definitive creative identity.