More recently it has been reprinted in the books Lord of a Visible World: An Autobiography in Letters edited by S. T. Joshi and David E. Schultz (2000), and Collected Essays, Volume 5: Philosophy; Autobiography & Miscellany edited by S. T. Joshi (2006).
According to S. T. Joshi, of the novel's 50,000 words, 1,200 were written by Lovecraft.
A critical essay on Morrow's work can be found in S. T. Joshi's book The Evolution of the Weird Tale (2004), from which the above information is taken.
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Special Interests: N. M. Joshi (Labour Interests), M. C. Rajah (Depressed Classes), Henry Gidney (Anglo-Indian), Dr. Francis Xavier DeSouza (Indian Christians), R. T. H. Mackenzie (Associated Chambers of Commerce)
Special Interests: M. C. Rajah (Depressed Classes), Henry Gidney (Anglo-Indian), Dr. F. X. DeSouza (Indian Christians), L. C. Buss (Associated Chamber of Commerce), N. M. Joshi (Labour Interests)
Copies of his The Seven Who Were Hanged and The Red Laugh were found in the library of horror writer H. P. Lovecraft, as listed in the "Lovecraft's Library" catalogue by S.T. Joshi.
Note that the plot description of this book as described in S. T. Joshi's Sixty Years of Arkham House is wrong.
Necronomicon Press published critical works by such pioneering Lovecraft scholars as Dirk W. Mosig, Stefan R. Dziemianowicz, Kenneth W. Faig and S. T. Joshi, including Joshi's biography, H. P. Lovecraft: A Life (1996).
"Lovecraft as a Poet", by Winfield Townley Scott (note: this first version of Scott's essay was revised as " A Parenthesis on Lovecraft as Poet" and was printed in Scott's Exiles and Fabrications; revised version also reprinted in S.T. Joshi (ed).