Pre-Code HORROR Comic Books History: The FIRST original book length horror comic?

Pre-Code HORROR Comic Books History: Is this the FIRST original book length horror comic in the history of comics?
https://www.youtube.com/watch?v=ubIowIUA46E
In 1948, a book-length comic book was published that featured a story written by STAN LEE with the classic horror atmosphere of novels such as...
https://www.youtube.com/watch?v=ubIowIUA46E

#horrorcomics #precode #goldenagecomics #comicbooks
#stanlee