Leonidas of Sparta: A Heroic King is the third installment in the trilogy covering the life of the famous Spartan king, written by Helena Schrader. I have not had a chance to read the first two books but jumped at the chance to read this one because I wanted to see how Helena would approach the Battle of Thermopylae.
Helena Schrader graduated with honors in History from the University of Michigan and has earned a PhD in History from the University of Hamburg. She has published several books since 1993, both fiction and non-fiction. Among the former are several historical novels including six on ancient Sparta. She maintains a blog titled Sparta Reconsidered.