Looks really nice. I have a few issues or it, but most of them are just writing style. For now, I'd point out that you seem to be switching between past and present tense - "The Guardian does" vs "The Guardian did" - which can be a bit confusing. There's also some uncertainty in other places - "Firing two silver bullets at the one on the left, the Fallen dodged the first but was then grazed by the second." If I've interpreted the sentence correctly, it could be better phrased as "The Guardian fired two silver bullets at the one on the left. His target dodged the first bullet but was then grazed by the second." You might also want to add more blank spaces. When your paragraphs don't start off indented, it's important to add some way to tell them apart. Adding a blank line between them does just that, improving readability. I would also question where he got a named weapon if he hasn't gotten to the city yet and why it fires (specifically) silver bullets, but that's something you can clear up in future installments. Don't misunderstand my criticism; I'm writing a novel of my own, so things like this stand out to me. Everything I'm saying is meant as advice to improve an already good start.