Iain M Banks’ The Algebraist was a far future space opera book that wasn’t in the Culture universe, which was disorienting for the first long while of reading it. Instead of Ship Minds this is a universe of wormholes and ships that are restricted to the speed of light otherwise. There are aliens including the gas-giant occupants the Dwellers, who feature heavily in the book.
Dwellers are incredibly long-lived. Some individuals are billions of years old. They’re also full of shit liars and completely uninterested in the deadly serious politics of the Quick (as they refer to all the short-lived species of the universe). This apathy towards politics is important to the inhabitants of the Ulubis system which has been cut off from the wormhole network for centuries and has learned it’s the target of an invasion by a ridiculously terrible warlord with diamond teeth and a huge-ass fleet. The Dwellers aren’t concerned but Fassin Taak has been sent in to find one of their secrets that could help turn the tide of the coming war.
It was a fine space-opera adventure story, but I missed the ubiquitous AI presence from the Culture books. Though there was an awesome bit with a species that was sentenced to become terribly morbid and look after corpses. That was pretty sweet. I also enjoyed the depiction of the Dwellers as so completely unserious. In general, it felt a little more traditional than I like, less mind-bending in its ideas.