Uncanny X-Men #164

The X-Men are about to get a powerful new ally in their fight against the sinister Brood. For years Carol Danvers was the Kree-powered super-woman known as Ms. Marvel. But the evil mutant Rogue stole her abilities, and her identity. But now Carol will be given power beyond imagination as "Binary" is born! Plus, Storm discovers a bone-chilling secret within herself.