I just finished The Temporal Void by Peter F. Hamilton, the second book in his Void Trilogy.

Not surprising here - it's not really a separate story as much as a direct continuation of the first book, which I wrote about here. So much so, that it was hard to start this book since it's been a while since I read the first one. Keeping track of the list of characters and their complex interactions wasn't easy even while reading that book - trying to do it jumping into this one was worse.

Also, like the first book, the story within a story, told as series of shared dreams, is more compelling than the main story. It takes some unexpected twists here, turning it's protagonist into even more of an uber-mensch, but still makes for a good fantasy story, although it is now tied into the main story in such a way that it wouldn't make sense on it's own.