Cosmo: The Mighty Martian #4 (Yardley Cover)

Cosmo and his team are on a mission to find the mysterious Martian Relics! The crew hopes that they can finally put an end to the evil antics of the Venusian army-but what will Cosmo do when he learns that the final relic resides in the one place they don't dare to enter... the castle of Queen Hesper on Venus?!

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