Demons, Dragons, ghouls, and gheists.
The monsters of Terra are many. I, Nicholas Wolfram shall tell you all about them in the hopes you may avoid the fate of some of my students.
Read on, lest a lack of knowledge be your undoing.
These monsters are based on those found in The Alchemist Series which can be found on Amazon: https://www.amazon.com/dp/B07DG9H6CV