Charles Xavier was in a place most people would never expect or even know about. He was in a room housing the machine Cerebro. He and a man named Eric Lensherr had built together before their falling out. It detected every human on the planet whether they were normal or a mutant. It would tell you the difference between them. He had recently detected an oddity in the machine though. One person kept flickering from human to mutant. He had also heard tales about the Phantom Thief Dark. He had heard all about his odd practices when he was planning to acquire (steal) a piece of art. No matter how much police tried to stop it they never could. Since both Dark and the oddity detected in Cerebro were in Japan and in the same city he would send one team of X-Men to visit them both and try to get them to come to the institute.