Erin Black is trying. But it's hard to make her life work when she feels like Seth isn't ready to grow up for their very unplanned baby that's on its way. Not to mention that he and her Pack families have to once again help the Cullens face down a powerful enemy, the Volturi, and do their best not to get killed. Can Erin handle it all or will she finally break? SETH/OC. BOOK 4.