Uncanny X-Men #155 (1981)

VF

Script Chris Claremont
Pencils Dave Cockrum ; Bob Wiacek 
Inks Bob Wiacek

Cyclops has a hard time dealing with the fact that Corsair is his father. The X-Men are abducted by the Shi'ar and told that Lilandra has been abducted by terrorists. They are given 24 hours to find her or the Shi'ar will take matters into their own hands. Kitty and Kurt are left on their ship as hostages. The X-Men go to the Avengers for help but only find Tigra in residence. Our heroes battle Deathbird and the Brood through the new IBM complex for Lilandra's freedom. The villains take off in a spaceship and, in the ensuing rubble, the X-Men find Colossus with a spike through his chest.