A Closed and Common Orbit

Was expecting further adventures of the Wayfarer crew, and was at first sort of bummed to be reading a mostly unrelated story featuring a minor character from the first book and a character that was literally born in the last few pages of that book, but got over that pretty quickly. You can't really call this a sequel, as it shares almost nothing with the first book other than being set in the same universe and sharing the original's fascination with characters who have non-human psychologies while still being fully realized persons.