Just bought it on Audio book as I was doing a lot of driving this past week. Struggled to handle the jumps between various scenes but that was more down to me concentrating on driving than anything with the book.
Was pretty good, better than some of the other books, but it left me feeling like the scars story was really unfinished. Not sure we will get anymore white scars books and that's disappointing.
I liked the little sub plots being unveiled. A bit more back ground to Nikea and how it fitted in to the grand scheme of launching the heresy, actions of the Alpha Legion in manipulating events fore and against horus. Always wondered how they would make Mortarian a bad ass given his breathing problems but they did a great job on that, the confusion between legions as how events started to unfold.
I think I would have preferred this to have come out earlier in the series. When a list is put together on what order to read books, this has to be fairly early on. After Thousand Sons maybe.