This is a prelude for "Vaempires: Revolution", but it's supposed to be read after the first book. At first, I found that a little bit strange, but after doing as the author suggested, I totally saw the point of it. Who would watch Star Wars Episode I, II and III before having seen Episode IV, V and VI? I know the story would make perfectly sense if you'd watch it in that order, but still, let's be honest everyone, the greatest beauty of Star Wars (despite Han Solo, of course) is cheering Darth Vader (pfft, tell someone else you didn't do that, too) but only then find out everything about his background and his forbidden love. That's how it works, first you grow fond of a character and then you want to know every secret. And that's exactly what happens in Vaempires, The Evolutionary War Series. You read "Vaempires: Revolution", you're amazed by the action in it and totally captivated by story and characters, then it comes "Vaempires: White Christmas", you find out how all the fuss started and you love it, because at this point you're able to see everything with the eyes of a character you previously learned to love and admire. The bound is already there, Daniel's concerns are yours, and you feel his struggling for Cassandra and love the way it all comes to life.
"Vaempires: White Christmas" is a really beautiful prelude and once again, with his very strong writing skills, Thomas Winship managed to make me love his story with such an amazing intensity that I wouldn't hesitate to recommend this book to everyone.