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John Carter: Warlord of Mars #12

The fate of Mars hangs in the balance as John Carter and Dejah Thoris race to revive the planet's dying atmosphere. Standing in their way are killer robots, savage Tharks and villains of all stripes. Will John and Dejah sacrifice themselves if it means saving their world?

Doomsday Clock #12 Puts a Superman Twist on an Iconic Watchmen Image

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