Harry Potter and the Deathly Hallows. I continue to suspect that Harry dies at the end of Book 7, with the probable explanation running something like this: Voldemort planned to create the final horcrux when he killed Harry. When Harry survived, the spell misfired and Harry himself became the final horcrux. At the end, Harry will realize that the only way to defeat Voldemort is to allow Voldemort to finally slay him (no greater love ....).