Being an avid Charles Stross reader, both fiction and blog, I had heard the name Karl Schroeder mentioned a few times and even read some of his guest posts on Charlie's blog, and I eventually picked up one of his books from the local Forbidden Planet: Sun of Suns.

Set in a free-fall air bubble the size of a planet, it's a blend of swashbuckling "airships on mars"-style derring-do, political intrigue, and hints of post-human futurism.