Hey! I want to start out by saying that you made a cool horror game. The ambiance is right, the visuals, music, and sound effects make for an unsettling atmosphere, so great job on that!
I do have a few bits of feedback. I'll start out with the core gameplay experience. My first time through, after I burned the book, my character just started smoking, and I didn't really know what to do next, so I just waited for the timer to run out. When I restarted, I read the dialog more closely, and I figured I had to find and burn all the object or something like that. A bit more direction on what exactly I'm supposed to do and how to do it would be helpful. Plus, it's really hard to find the objects with the particle effects around your character.
Some other minor things: The mouse sensitivity was pretty high for me, so it'd be great to include an option to set it. I also noticed that when you open the pause menu, you can't unpause. (Your mouse is hidden and ESC doesn't close it). The text is also very small for me (possibly an issue with UI scaling settings). The game is very dark, which makes sense for a horror game, but it's also a bit disorienting, so maybe upping the contrast in your lighting would help that while still maintaining the ominous atmosphere.
Overall, solid entry! I think you nailed the horror aesthetic, just some tightening up in direction and player quality of life would do wonders. Hope this helps!