Red Mortal (Gods of Midnight #4)

Leonidas has long led his fellow immortal warriors in battle with quiet, unyielding strength. But when Daphne, Oracle of Delphi, confesses to having loved him from afar, Leo finds his stoic shell breaking away. Just as their love ignites, Daphne's half-brother Ares strips Leonidas of his immortality. Now, it's just a matter of time before Leonidas is taken from her-unless they can find a way to challenge Ares together.