Published Aug 1972 by Marvel.
The Monster's Secret!" Part 2 of 2. Script by Stan Lee. Pencils by John Buscema. Inks by Joe Sinnott. Cover by John Buscema and Joe Sinnott. While Ben and Johnny are hunting the Monster from the Lost Lagoon, the Invisible Girl fights to stay alive in an underground cave rapidly filling with water! But thankfully, Sue has an unlikely savior...the monster himself! Why is the alien monster rescuing the Invisible Girl? Reed deduces the creature's motives and devises a happy ending for everyone involved! (Note: This issue concludes Stan Lee's 10-year run (that began with issue number one) as the primary writer for the Fantastic Four title.) 32 pages Cover price $0.20.