They wiped his memories and instincts as a child. They trained him to be an elite assassin. They were sure he would never remember. They were wrong... Memories and emotions do not make for an efficient killer. They cloud judgment. They make you hesitate. They make you feel. And up to this point, Cain has been one of the most efficient killers in the world. He is one of four engineered assassins who were stripped of their instincts and memories at a young age and trained to become the deadliest killers the world has ever known. Only when Cain, the most skilled of the four, regains his memories he vows to awaken the other assassins and extract revenge on those responsible. The path to vengeance is a long one that spans countries filled with dangerous enemies and powerful allies. Uniquely divided into two halves, Eden Falls first retells Cain's memories written as a memoir in an attempt to never lose his memories again. The second chronicles the assassin's quest for vengeance. Will he succeed, or be crushed by those who stand against him?