I wasn't so sure about this book for the first half. There was a lot of airplane minutiae and historical jargon that left my mind drifting a bit. However, about halfway through there's a major 
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 shift in the narrative, and we learn that what we've heard up until this point may have been only a version of the truth. After this shift in perspective, I couldn't stop listening. Connections are made and the pieces of a great book come together. 
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 The narrators of this audiobook had thick accents, so it took a bit to get used to the rhythm and lilt of their voices. But after a few chapters, I was able to follow along attentively.