Christmas Issue - "Merry Christmas, X-Men!" Part 1 of 3. Story by Chris Claremont. Art by Dave Cockrum and Sam Grainger. Dave Cockrum cover. It's the Holiday Season and the residents of Xavier's School for the Gifted are about to receive a most unexpected surprise...the mutant hunting Sentinels have returned! But why have these robotic giants attacked now, and who is pulling their strings? The answer will leave the X-Men speechless. Cover price $0.25.