Five hundred years After the Disaster, the world has once again become a place of order. Technology abounds; peace reigns; children are constructed; religion is an afterthought. Eun Mercurius comes from a long line of merchants and communicators. His grandfather, a noted scientist, inventor, and sole creator of the game-changing bio-update, Herald, fled to another sector twenty years ago shortly after the triumph. Herald, a technology created for the PALM device that is inserted into every child's left hand shortly after birth, changed the way the world lived, communicated and informed. Eun's adopted sister, Katherine, is a part of a worldwide religious sect that believes she is the prophesied messenger of their ancient book. Because of Grandfather Avis' invention and Katherine's uncanny entrance into the Mercurius household, many believe she is the one to announce the beginning of the last days. Eun hates his grandfather for leaving and refuses to believe in any form of religion. His focus for two decades has been to keep his sister safe. However, life begins to unravel as the beginning of his secrets are exposed, and he comes face to face with the truth of how far some will go to demolish the rumors that the end of the world is near, and his sister is the one to usher it in. Is Katherine the Herald? Will Eun be able to protect her? Will he have the courage to do the right thing?