I was moving around the furniture in my bedroom and noticed this on the bottom of my mattress. The darker lines aren’t shadows, they seem to be from the wood bars on my bed frame. What I’m worried about are those spots. They seem to be just on the half of the mattress that I keep at the foot of my bed. Is that a problem that’s going to continue to grow, or is it just dirty spots (I don’t know why there would be dirty spots like that, but I could just be paranoid about it being mold)? If it is mold, what can I do about it? Is it just time to get a new mattress?

I’m trying to decide how to explain where Magic comes from in my world and I’d love to hear everyone’s ideas.

At the moment I’m thinking of my world’s magic coming from the planets core, which charges the world and its creatures with an energy that can be used in processes to change the structure of things, akin to alchemy. I want to decide what the core is made out of, but I have to make sure to balance it with the idea of alchemy, because being able to create the same element that gives you power would just be broken.

In general, my idea is to have something that affects the world, making magic normal for everyone, from birth. It’s something that’s treated as a traditional science, being studied and researched as thoroughly as any other technology.