The second book in The Twilight Saga.
Young girl Isabella Swan's 18th birthday is coming up. She quite decisively tells Edward not to give her any gifts. He does do as she tells him to, but when taken to the Cullen's, she finds out that the others were not as obedient.
Here's where things take a sharp turn. Bella is suddenly made aware the true face of the vampire race, and finds herself left alone in Forks. This is the prelude to Bella's new life, spending more time with an old acquintance presented in the first book. Except, she can't really get rid of her old life, and in fact, she eventually does more and more to be reminded of it.
As she continues trying to relive the past, danger present itself, again, threatening Bella and the one's she holds dear. Ironically, the series of events leads her to a race against the clock to save someone else's life....
Ending the book, Bella is more torn than ever about her feelings and the way of life she has chosen. Untangling the mess she's put herself in continues in the third book, Eclipse. Other than some abrupt turns that only get a fairly simplistic explanation, New Moon widens the perspective on the Twilight universe, and provides an arch in the story, towards the next book.
A quick read, probably more so than the first book, due to the familiarity of the characters but also thanks to the intriguing love story accompanied by Bella's thoughts, underlying the Twilight Saga.