Marvel Legendary Collection: X-Men - The Muir Island Saga

This is issue 9 of the Marvel Legendary Collection, a hardcover graphic novel series published by Hachette Partworks. It collects the 'Muir Island Saga' storyline, which features the X-Men and X-Factor uniting to battle the Shadow King at the mutant research facility on Muir Island. The book collects Uncanny X-Men #278-280 and X-Factor #69-70.