Astonishing X-Men #20
In "Unstoppable Part Two," the Astonishing X-Men face a desperate race against time as they scatter across the hostile planet Breakworld. With Colossus grappling with a haunting prophecy and Wolverine urging Hisako to embrace her new role, the team fragments under pressure—each member fighting to survive and stay true to their mission. The issue's striking visuals by John Cassaday, both in story and on the cover, heighten the tension as secrets buried in ancient stone begin to surface.
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Reprinted in Astonishing X-Men #2 (2008), Astonishing X-Men #32 (2008), Astonishing X-Men #4 (2008), Astonishing X-Men #4 (2009), Astonishing X-Men by Joss Whedon & John Cassaday Omnibus #[nn] (2009), Astonishing X-Men #2 (2010), Astonishing X-Men by Joss Whedon & John Cassaday Ultimate Collection #2 (2012), X-Men - La Collection Mutante #46 (2022), Astonishing X-Men Modern Era Epic Collection #2 (2024), Cosmic X-Men Omnibus #[nn] (2025), Astonishing X-Men [Χ-Μεν Εστόνισινγκ] #10
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