Charlotte Amelia Caprice may seem like an ordinary girl. She has a job she hates, a boss she despises, and zero romantic prospects. Her friends call her Charlie, when she can keep one for more than a few weeks. Though Charlie may seem ordinary, she is anything but. Charlie doesn’t have a heart. Instead, she has a steam driven machine in her chest, always making her feel less than human. Gears and pistons have been using her own body heat to pump her blood for over a decade. There is one small problem. Her heart is beginning to break. When Charlie meets a brilliant man, one who could save her life, she must choose between being heartless and being alive. A simple choice for some, but for Charlie living on steam isn’t easy.