Among the books found in his library (as evidenced in Lovecraft's Library by S. T. Joshi) was The Seven Who Were Hanged by Leonid Andreyev and A Strange Manuscript Found in a Copper Cylinder by James De Mille. Lovecraft's Library de S. T. Joshi), il y avait The Seven Who Were Hanged (Les Sept Pendus) de Leonid Andreïev et Un étrange manuscrit découvert dans un cylindre en cuivre (en) de James De Mille.