"Who is Superwoman?, Conclusion: Epilogues & Homecomings"
Green Shield 30. Continued from Action Comics (1938) #878 and continues in Superman (1939) #689.
*Supergirl has answered the question "Who is Superwoman?" but there's more to the mystery! In this dramatic epilogue issue, Supergirl must deliver devastating news to one of Superman's closest allies! And something strange is going on with Lana Lang – can anyone help her before it's too late? Back on New Krypton, Alura is none too happy with her daughter – leading to some drastic consequences for our Girl of Steel! *Source: dccomics.com