Adventure Comics #400

Adventure Comics #400, published in December 1970, serves as a significant milestone in DC Comics history, marking the transition into a new era for the long-running anthology series. By this stage in its publication history, the title had become the primary home for the Legion of Super-Heroes, with the issue featuring a cover by Curt Swan and Murphy Anderson. The design reflects the house style of early 1970s DC, balancing classic superhero sensibilities with the evolving, slightly more mature narrative tone that writers of the Bronze Age were beginning to experiment with during this period.

The issue is particularly noted for featuring the work of writer Jim Shooter and artist Curt Swan, key figures who defined the Legion’s identity for a generation of readers. At the time of its release, the comic was positioned as a staple of the DC lineup, aiming to maintain a dedicated audience while experimenting with the interconnected, large-scale cosmic storytelling that the Legion series had become known for. It is generally regarded by historians as a solid, representative entry of the series' mid-transformation phase, celebrated more for its structural contribution to the ongoing mythos than for any radical deviation in artistic approach.