1) Siri's role was as an access character to give you someone to give a shit about amongst an entire ship full of misanthropic twits that I wanted to crush like bugs. Unfortunately I wanted to crush Siri like a bug also. His judgements and reports aren't trustworthy because the author wanted to make the point that nothing is trustworthy. That's his theme. My throat is still sore from having "theme" shoved down it over and over again.

2) Religious themes come up a lot because the author was in love with creating the vampire "species" and he couldn't get around them being repelled by crosses. That's it.

3) I hate this book so much. About a third of the way through you're led to believe you're in the hands of someone who knows what they're doing but by the time you're two thirds of the way through it's abundantly clear that the author is fumbling along, without a plan, so that he can throw his ultimate "fuck you audience" of having a doomed ship from a doomed planet encounter a superior species that is interested in exterminating the human race in as graphic a way as possible just to fuck with them but it doesn't matter because the human race has retreated into the television while the vampire species they resurrected, which is called "solitary" every other page, has somehow banded together to wipe out their sole source of food.

Fuck. This book. In the neck.