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Collects Uncanny X-Men: First Class (2009-2010) #5-8.
The world trembles as the sky begins to boil! Professor X attempts a desperate rescue mission on the Starcore One satellite but a threat from galactic legend is waiting! Who are Burning Moon, Cloud Runner and Sky Song, and how are their fates tied to the X-Men? Earth faces destruction as the mutant heroes battle an unstoppable enemy...The Knights of Hykon! (All this and Nick Fury too!)