X-Men Vol 1 #134

X-Men Vol 1 #134
“Too Late, the Heroes!”
Published by Marvel Comics
June, 1980

1st Appearance: Dark Phoenix

The X-Men finally turn the tables on their captors, but too late to help Jean Grey. For months the Master of Illusion, Mastermind, in the guise of Jason Wyngarde, has been psychically seducing Jean. However, his mental tampering has unleashed the most dangerous creature this universe has ever seen. Thus, the Dark Phoenix is born, and no force on earth may be able to stop her.

Cover Artists: John Byrne, Terry Austin, Gaspar Saladino
Writers: Chris Claremont, John Byrne
Penciler: John Byrne
Inker: Terry Austin
Colourist: Bob Sharen
Letterer: Tom Orzechowski