John Carter slams face-first into the forbidden terrors of the Martian North Pole – literally! Not a single person to have crossed into the frozen northern wastes has ever returned to tell the tale, and Carter's going to find out why. What he discovers will shock him to his very core, but when the life of his princess, Dejah Thoris, is at stake, no risk is too great. Warlord of Mars #23 – The Carrion Caves!
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