As Marvel's upcoming comic book crossover event War of the Realms puts the fate of the entire Marvel Universe in the balance, the heroes' only hope may rest in the hands of an Asgardian infant.

Marvel has unveiled the variant covers for the first two issues of the tie-in miniseries War of the Realms: Journey Into Mystery by the McElroys and André Lima Araújo. Featuring the unlikely team-up of Miles Morales, Kate Bishop, Wonder Man, Thori the Hellhound, Sebastian Druid, Death Locket and Balder the Brave, the heroes search for Thor's baby sister in hopes of her putting a stop to Malekith's invasion of Earth. The variant for the first issue hails from artist Joe Quinones and colorist Matthew Wilson, while the variant for the second issue is illustrated by Rahzzah.

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First announced in January, the five-issue miniseries finds this unexpected assortment of heroes facing foes from across the nine realms, including the Frost Giants of Jotunheim, in their desperate bid to turn the tide of battle back on Earth.

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Judging by the two newly released variant covers, the heroes are going to have their hands full by this particular baby rescue mission.

War of the Realms: Journey Into Mystery #1 is created by Justin, Griffin, Travis, Clint McElroy and André Lima Araújo. The miniseries is scheduled to debut on April 10 from Marvel Comics.