Elena has faced countless challenges, but nothing compares to balancing her complicated relationships with Stefan and Damon Salvatore. Stung by her reunion with Stefan, Damon has become dark and unpredictable. As Elena struggles to save Damon's soul and stay true to Stefan, one of her most deadly enemies returns. Klaus is back and will stop at nothing to destroy Elena—and everyone around her.

To defeat him, Elena will have to sacrifice someone she loves. Elena must decide how much—and who—she's willing to give up before it's too late. . . .