"The Coming of... Sub-Mariner!"
May 1962
After running away, Johnny finds Namor, who revives the giant monster Gigantor
reprinted in
*
44 Years of Fantastic Four
2005, in collection
(2005*)
*
Marvel Digital Comics
no date
(no date)
*
Marvel Masterworks: Fantastic Four TPB #1
2009, in collection
(2009*)