Last spring, Nikki Beckett vanished, sucked into an underworld known as the Everneath. Now she's returned—to her old life, her family, her boyfriend—before she's banished back to the underworld . . . this time forever. She has six months before the Everneath comes to claim her, six months for good-byes she can't find the words for, six months to find redemption, if it exists.