The Amazon ePub version of City at the Top of the World will be out tomorrow. It’s $2.99, but free with Kindle Unlimited.
Also, you can order a shiny paperback copy from Lulu. I’ll even throw in a Promo code for you: FWD15
It’s good for 15% off your entire order, so why not throw in the sequel to Drasmyr while you’re at it? I just started reading it over the weekend, and it’s living up to the first one.