Space Adventures #30

This issue contains two main stories. "The Monstrous Egg" follows scientists from the worlds of Argola and Krasnia as they unite in common effort to study a mysterious phenomenon—a massive, growing object discovered in space with no natural illumination. Unable to reach it in outer space, they eventually recover it on the moon, only to discover it continues to grow and approach them. In a separate story, an escaped Martian prisoner seeks out a government space project artist, claiming to be Professor Glayce, and requests the artist's help in locating the Martian arsenal on Mars, revealing there are fighting ships and other military secrets the escaped Martian wishes to disclose.