Black Caravan Imprint. Broken Souls Ballad is a dark story of brotherhood and sisterhood, about special children with tremendous powers born of their mental illnesses and fears. They were created this way by a government agency - one of many moving through the shadows - to become sentient biological weapons. Now, as they enter their adolescence, their powers have become more and more undeniable. It is time to return home, to the dark arms of the institution that birthed them - Saint Abigail's.