Uncanny X-Men #104

Moira MacTaggert has sent a message directing the X-Men to go to Muir Island off the coast of Scotland. In order to get there, the team must first persuade a reluctant local fisherman, Angus MacWhirter, to rent them his hovercraft. Their mission is to find out why Moira's assistant, Jamie Madrox, has been out of contact for several days. Before they can dock on the island, however, the hovercraft is disassembled by a massive bolt of magnetic energy, sending them all tumbling into the ocean. They all swim ashore but find that the island is surrounded by a magnetic force field.

Before they can figure out what to do next, the ground beneath them is pulled up into the sky and they are levitated into view of Moira's Mutant Research Center. The X-Men are amazed at the enormity of the facility located there and they wonder aloud just who Moira MacTaggert really is. They are almost crushed against a wall, but launch a quick defensive attack in order to pummel through it. As they recover from a crash landing, the doorway ahead of them bursts open, revealing the X-Men's oldest enemy: Magneto, no longer a child.

Elsewhere in the complex, the X-Men's Blackbird lands, and Moira and Cyclops emerge. Cyclops is disgruntled that, as an original X-Man, the existence of this facility and Moira’s work hadn’t been shared with him. They find Jamie Madrox, who is just reviving after having been knocked out. He explains how he was attacked and immobilized by Havok, Polaris and Erik the Red. While Jamie was kept in stasis, they went to Magneto’s containment cell, where he had been kept since he was transformed into a small child. Erik then restored Magneto to his prime and tried to enlist him in his cause of destroying the X-Men. Magneto refused to be subservient to anyone else, but did vow that he would destroy the X-Men anyway.

Cyclops rushes off to join the rest of the X-Men, who are not faring well in battle against Magneto. His magnetic powers give him an advantage against both Wolverine's adamantium claws and Colossus's metal body. Storm’s lightning bolts have no effect on him either. Magneto covers Nightcrawler in debris and seals Banshee in a cocoon of metal particles. Fortunately, Cyclops arrives and manages to stun Magneto with the full power of his optic blast. Seeing as the group is clearly unprepared to battle Magneto, Cyclops orders them to retreat, much to Wolverine's chagrin. As they are leaving, Wolverine notes a monitor indicating that Dragonfly of the Ani-Men has escape from her containment cell.

While fleeing the scene in the Blackbird, Cyclops informs his team that the recent attacks on the X-Men orchestrated by Erik the Red are a diversion. Erik (who must be an alien, given the technology at his disposal) is really targeting Professor X because of his recent psychic rapport with an alien being. Cyclops says it’s imperative they return to Xavier immediately. Unconvinced, Wolverine dismisses Cyclops as a coward.
Back on Muir Island, Magneto gloats about his victory over the X-Men and leaves to plot anew. He passes by a door labeled "Mutant X", which begins to glow.

Meanwhile in deep space aboard a starship known as the “Starjammer”, the space pirate Corsair tells his shipmate Ch'Od that nine stars are moving into the correct alignment, and so the “Emperor” must be planning to open a stargate. The Emperor’s sister Lilandra (the woman that has been haunting Xavier's dreams) is rushing toward the Earth in the hope that Charles and his X-Men might be able to help stop her brother. Before she can get to Earth, however, she is attacked by an Imperial cruiser.

In New York City, Jean Grey is reunited with her parents in the company of the Professor and her roommate, Misty Knight. They are unaware that their reunion is about to be cut short by an attack about to be launched by Erik the Red, Havok and Polaris.