Adventure Comics #269 is one of the most important Silver Age Aquaman keys, featuring the first appearance of Aqualad, Aquaman's longtime sidekick and a foundational character in DC Comics history. This issue also contains the final Green Arrow story in the title and an appearance by Krypto. First appearances from the Silver Age continue to be among the most desirable segments of the comic market, and Aqualad remains relevant through Teen Titans and Young Justice appearances. CGC 6.5 examples offer an attractive balance between affordability and investment potential for collectors seeking major DC Silver Age keys.