Callisto answers a cry for help from Warren Worthington, a.k.a. Archangel! But Callisto and Warren have some pretty unpleasant history between them. Can they overcome their differences long enough to survive? Meanwhile, Professor X and Magneto struggle to help their disturbed guest on Genosha Collects Excalibur #11-14. Это и многое другое вы найдете в книге House of M: Excalibur - Prelude (Chris Claremont)