In December Howard sent several first drafts to Robert H. Barlow, ca. December 1932 (letter #226):

Price tells me that you are interested in the collection of first drafts of Weird stories. I am sending by express, the first writings — or rather the first typings, since I do all my work on the typewriter — of “The Phoenix on the Sword”, “The Scarlet Citadel”, “Black Colossus”, and “Iron Shadows in the Moon”. Some of the pages seem to be missing from the first named story, but the others are complete. Hoping you will find them of interest, I remain,

P.S. “The Phoenix on the Sword” and “The Scarlet Citadel” have appeared in Weird Tales. “Black Colossus” is scheduled for the June issue, and “Iron Shadows in the Moon” has been accepted, but not scheduled.

Barlow seems to have liked the story for in another letter (#227) also circa December 1932, we learn:

I’ll be glad to sign the title pages of the stories. If I had thought, I would have done so before sending them. Glad you liked “The Scarlet Citadel”.

In a letter (#241) to Carl Jacobi from March 17, 1933, Howard thanks him for kind words regarding his story:

Thanks for the things you said about my work. I’m glad you liked “The Scarlet Citadel” so well.

In the letter (#248) to Hugh G. Schonfield, dated June 15 1933 we learn:

Dear Sir:

As I promised, in answer to your letter of May 19th, I am sending, under separate cover, a representative collection of my weird stories. These include:

1. Wings in the Night
2. The Tower of the Elephant
3. Kings of the Night
4. The House of Arabu
5. The Valley of the Lost
6. The Scarlet Citadel
7. The Horror from the Mound
8. The Children of the Night

As I have no typed copies of “The Tower of the Elephant” or “Wings in the Night,” I am sending the printed pages of these stories in order to save time. If you wish, I will prepare manuscript copies of them.

“Wings in the Night,” “The Tower of the Elephant,” “Kings of the Night,” “The Scarlet Citadel,” “The Horror from the Mound,” and “The Children of the Night” were published in Weird Tales magazine. I own the British Empire rights. “The Valley of the Lost” was accepted by the Clayton Publishing Company, for their magazine Strange Tales, but that magazine was discontinued before the story was published, and it was returned to me. “The House of Arabu” has never been published.

Howard mentions the wizard in the story in a letter to Clark Ashton Smith, postmarked December 14, 1933:

Only the fact that I have been sick has prevented me from answering your interesting letter before now. The drawing is fascinating, subtly suggesting life alien to humanity. My wizard of “The Scarlet Citadel”, Tsotha-lanti, must have looked something like that. Do you wish me to return the sketch?