Nice. My favorite lines:
How dare they kill poor Fiddlesticks?
The brave brown mouse of town.

How dare they help old Meridan?
An evil witch allowed?!

For the "which we shouldn't command" part, I got a bit confused initially reading this but are you just saying that writers shouldn't hold the power to totally crush us? Hehe. And did you mean twist the tales "SO" wrong? Was the next Death to Writer supposed to be a rhyme as well, or not? I love the ending stanza though! So short and simple and powerful.

Overrall, I really liked it. :)

Wow, it's pretty funny. I started laughing at the second paragraph.

I like this very there be more chapters? If so I will follow. :)
I really did enjoy reading this piece.