X-Men #134 CGC 9.8 WP CLASSIC Cover art by John Byrne, Jean Grey Becomes Dark Phoenix Dark Phoenix Saga Part 6 (Cert 7016)

• Cover art by John Byrne
• Jean Grey becomes the Dark Phoenix  
• Part 6 of the Dark Phoenix Saga  
• Key turning point in one of Marvel’s most iconic storylines
• White Pages

Synopsis:

"TOO LATE, THE HEROES!" The X-Men finally overcome the Hellfire Club, but Mastermind’s manipulation has already taken its toll. As Jean Grey breaks free, the immense power of the Phoenix transforms her into the Dark Phoenix, changing the fate of the X-Men forever.