Captain Nina Gaav is a soldier from an ancient race of Humanoids who are born to defend life in the Galaxy. They call themselves Advocate Warriors. She and her billions of sisters learn from birth that they must give their lives to protect and preserve sentient beings everywhere. They fight the Silicoids: a race capable of consuming entire planets with relentless hunger. When Nina faces orders that threaten her existence as well as her way of life, she has questions Advocates are not allowed to ask. As the balance of life is changing, Nina faces impossible choices. Does she follow the ancient ways of her kind, no matter the cost? Is there some new path to follow that reconciles duty and freedom? Nina is shocked to discover Earth may hold the answers. But life on Earth is not what it seems. A small, secret group of Humans works with the dangerous knowledge that might restore the balance. Humanity and Advocates must work together, but the distance between them is closer than blood and greater than space. If Nina makes the right decisions, life may go on.