Read it. Loved it. Crescendo is a young adult paranormal romance novel by Becca Fitzpatrick and the second book in the Hush, Hush series. The book was first published on October 19, 2010 through Simon and Schuster and spent ten weeks on the New York Times Best Sellers list. The book was also voted as one of the Young Adult Library Services Association's Teens' Top Ten for 2011.