Sub-Mariner #63 (1973)

"The Prince and the Pirate," script by Bill Everett and Steve Gerber, pencils by Bill Everett & Win Mortimer, inks by Bill Everett & Jim Mooney (Bill Everett passed away after finishing only the first three pages, completed by Win Mortimer and Jim Mooney). Cover by Bill Everett.

As Atlantis celebrates the return of its prince, Namor decides it's time Namorita returns to her undersea realm, but her plane is captured.  Vowing to rescue her, Namor is trapped by Dr. Hydro and his amphibian men, who are planning an invasion of Atlantis.

Key book; first appearance of Doctor Hydro (Herman Frayne) and his Hydro-Men. Good condition.