Until The Day I Die

Sierra and Peter have been married for about a year and a half now, and have been happier than ever. It's just been hard, knowing that Susan, Edmund, and Lucy have been dealing with his 'death' in their world. But then, Edmund returns, and word starts to get around that there's a new evil, and that the darkness in this new person resembles that of the White Witch. Then, something else comes up. Something that Sierra had hoped would stay in her past, and wouldn't haunt her anymore. Can she and Peter manage to defeat this new evil? Or will the vow they made, 'Til death do us part' come into play a lot sooner than they'd hoped?