He apparently 'idolized' Poe, was a recluse, and was, as is very articulately revealed in his stories, By 1926, his writing turned more toward novels and plays rather than just short stories. Grabinski went on to write On the Hill of Roses (1918) - which I own but haven't read yet later The Motion Demon came out in 1919 followed by 1920's The Deranged Pilgrim, The Book of Fire and An Uncanny Tale in 1922. By 1909, Grabinski had self-published a slim volume of stories, all trace of which has disappeared, but with which his course was set these first macabre compositions already demonstrating his preoccupation with issues of philosophical conjecture.' (143) His literary aspirations announced themselves early, and from the first his work was marked by metaphysical speculation and a concern with the mystery of existence. By the time he had finished his education and embarked on a career as a teacher, observers describe him as already pale and gaunt, always dressed in black, a man apart in his own inner realm, and regarding his surroundings obliquely. His health remained fragile throughout his life, and this condition no doubt played a part in the formation of his personality, which was gloomy and introspective. 'While a child, he contracted tuberculosis. While you can get some info about him from Wikipedia and from The Stefan Grabinski Website, thanks to a post at Writers No One Reads, I discovered a bit more from Gilbert Alter-Gilbert, who wrote a piece about Grabinski and The Dark Domain in the Asylum Annual of 1995 (Asylum Arts Publishing): Since Stefan Grabinski (1887-1936) isn't exactly a household name, I think a brief bit of background is relevant here.

The Dark Domain by Stefan Grabiński