Fantastic Four #63 (1961 1st Series)

Blastaar, the Living Bomb-Burst!, script by Stan Lee and Jack Kirby (co-plot), pencils by Jack Kirby, inks by Joe Sinnott; The FF battle Blastaar and the Sandman, who have teamed up; Reed puts a helmet on Blastaars head to prevent his explosions. Triton and Crystal (of the Inhumans) appearances