You can find the text on platforms like LitMir for online reading or downloading.
If you’re looking to dive into this Silver Age classic, you can find various editions and digital versions: dnevnik satany skachat knigu
Interestingly, literary critics at LitMir note that Andreyev seemingly predicts weapons of mass destruction, warning humanity about its own inventive path toward self-annihilation. You can find the text on platforms like
The Devil is Outmatched: Why You Should Read Leonid Andreyev’s Satan’s Diary dnevnik satany skachat knigu