Note that the 2022 Armchair Fiction edition reprints the 1925 serialized version of "Invaders from the Dark", which likely only is of novella length
No statement of printing or edition.
Colophon states 1500 copies were printed. Actual number is 1559 copies per Sheldon Jaffery's Arkham House Companion.
"Copyright, 1925, by The Popular Fiction Publishing Company, for Weird Tales, where an earlier version of this novel appeared in the issues for April, May, and June, 1925."
First book publication.
In 1945, this title was announced as forthcoming as part of the Library of Arkham House Novels of Fantasy and Terror. However it was not published by Arkham House until this edition.
Derleth Thirty Years of Arkham House: 59.
Joshi Sixty Years of Arkham House: 59.
Jaffery The Arkham House Companion: 61.
Nielsen Arkham House Books: 62.
