Possible Andru pencils per Nick Caputo, March 2018. Nick notes background figures look like Andru's style and the cover was likely based on a cover preliminary by Marie Severin, who performed that task for most cover artists in this period.
Roy Thomas added a note in the credits: "This story owes an enormous debt to and is hereby dedicated to Bill Everett, first writer/artist of the Sub-Mariner."
Sub-Mariner abdicates his throne until #60, leaves Atlantis until #58
The title is an allusion to "Samson Agonistes" by John Milton.
This issue has 20 numbered pages with pages 12 and 13 being half pages.
Letters from: Paul Sanford, Wilson Fong, Eddie Christopher, Mike Towry, Spence Marshall.
Includes “Know Ye These, the Hallowed Ranks of Marveldom.”