From GameWatcher: “Call of Cthulhu is out now, and while it has some problems it’s still a worthy adventure-RPG with a fair number of cool puzzles. One of the hardest puzzles is the Nameless Bookstore safe – how do you get the Call of Cthulhu Safe Code?
It’s a complicated process, but we show you the steps you’ll need to take to get there – or just give you it outright, if you don’t want hints! So here’s how to get the Nameless Bookstore Call of Cthulhu Safe Code!”
Source: N4G PC Call of Cthulhu Safe Code – How to Unlock The Nameless Bookstore Safe