Amazingly, there are still Lovecraft monsters that haven’t been worked up into game monsters by the table-top gamers. I can add another one, from the previously unpublished Wilbraham letter (ms. to Lillian D. Clark, 1st July 1928) that I was able to access for my latest book of essays…

“…lean brown marsh-things (invisible to mortal eyes) who wave & brandish them [constellations of fire-flies] in the gloaming when the unseen nether world awakes.”

Interesting also, that here we may have the genesis of the invisible monster which he was to place centre-stage in “The Dunwich Horror”. He wrote the story immediately after the Wilbraham visit.