Uncanny X-Men #13 David Mack Variant

THE DARK ARTERY" Starts Here! In their most terrifying adventure yet, the four young OUTLIERS discover the true meaning of Haven House and a doorway that should never be opened. Meanwhile, an otherworldly presence has set its covetous eye on one of the four young mutants, in a story that tells a never-before-told slice of the history of mutantkind!

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