Do you think this is a good idea for a book?

all due respect...no. too twilight-fanatic-y. try not to include "real" book names or whatevers in your story for the sake of the plot. then it just becomes an ode to twilight instead of ur own story. change the names too, i suggest. go to behindthename.com, there's millions of unique names with their definitions there! u can even type in what u want ur names to mean, like "moonlight", and hundreds of names will come up! good luck!