Out today! The ebook is exclusively at Amazon (and can also be read via Kindle Unlimited). The paperback can be ordered from any bookstore. As of release, I wouldn’t recommend ordering the paperback from Amazon; it is only being sold by third-party merchants at a steep mark-up. B&N has the correct list price, or you can always hit up your favorite independent bookstore and ask them to order a copy for you. ^_^
Here is a handy map Angel made of the setting for TSC. It’s not exact or to scale, but it’s still nice to have as a reference.
Above: visual references of how I envision some of the main characters of TSC. The story is told from Lucas’ POV.