>>2108fadedpage.com has a lot of public domain literature, even classic 1920s/30s pulp fiction and weird fiction; H. P. Lovecraft, Clark Ashton Smith, Henry Kuttner, C. L. Moore, &c.
8ch used to have a /pdf/, but it was mostly political stuff.
The Internet Archive has a lot of pulp magazines and short story collections as well, but be sure to download what you need ASAP. They remove anything that breaks copyright, even if it is a long-out of print magazine.
Here is a short story named
Pirates by E. F. Benson:
http://archive.vn/jZDbV /
http://web.archive.org/web/20190803022543/http://www.steve-calvert.co.uk/public-domain-texts/e-f-benson-pirates.htmlNo actual pirates appear in the story though, the title refers to a childhood game the protagonist used to play. Not even one of his spooky ghost stories, but a sweet, melancholic ghostly tale of an old man reminiscing about his childhood.