Note: This is not the same story that was mistakenly published in The Magazine of Horror, Summer 1966 as "Valley of the Lost". DO NOT MERGE or VARIANT these records. Background: "Valley of the Lost" was originally scheduled for Strange Tales but that pulp went belly-up before "Lost" saw print. In 1965, Glen Lord (executor for the Howard estate) sent a manuscript to RAWL titled "King of the Lost People," proclaiming that it was the story once slated for Strange Tales. Lowndes excitedly accepted the story for publication. Just as the issue was coming off the press, Lord contacted Lowndes with the news that "Valley of the Lost" was, oops, not really "King of the Lost People," because Lord had just found another "six boxes of Howard's papers and files" and "Valley of the Lost" was among the papers included (with annotations by Strange Tales editor Harry Bates). Definitely two different stories. The real "Valley of the Lost" later ran in Startling Mystery Stories. (per barebonesez.blogspot.com. At least one publication refers to the first appearance in Startling Mystery Stories as being titled "Secret of Lost Valley", rather than "The Secret of Lost Valley". This is the title on the cover, not in the interior per ISFDB standards.