As I mentioned in my last post, there are more magical creatures than just those characterized by light. Each being has the choice to pursue either light or darkness. Because of the power in magical beings, they are physically altered by their choices. This is why Diov is now no longer a fairy or dragon, but is instead a fae and wyvern. With that being said, let's just in to what happens to those magical beings of light who choose to pursue darkness.
Wyverns: Dragons who turn to darkness are transformed into wyverns, so their front legs merge into their wings and they lose the ability to breathe fire. They possess a magic that twists and tricks human minds, so they are dangerously deceptive.
Fae: These are fairies who turn to darkness. Unlike fairies, they have no wings, their teeth are slightly more fang-like, and they cast a shadow. They possess powerful dark magic and are known for persuading people to invest more than they can afford in their dark deals.
Sirens: Although it is very rare, some mermaids turn away from the desire to serve Adonia and become bitter and hateful. When this happens, they become sirens with webbed fingers and sharp fins down the sides of their tails. They convey their bitterness and despair so strongly through song that those who hear it are driven to make it stop in any way possible.
Trolls: These guys are the only ones on this list who were not magical to begin with. Remember how I mentioned that fae are tricky with their deals? One of their most common tricks is winning the trust of whatever human comes to them and then turning them into a troll. Just for fun or whatever.
So there you have it! My as-brief-as-possible overview of the magical beings in this series. This pretty much sums up the magic involved in these stories too, since humans don't have any magic of their own. I hope this was educational, and you can come back for the next blog post when I talk about how this whole world came about.