On the evening of their thirteenth birthday, Madelyn and Arthur St. Clair find themselves time travelling through a vortex portal to an extraordinary Mothership in a distant part of the Milky Way galaxy. The beings they encounter show them a series of shocking Forbidden Truths about their home planet, and life beyond Earth's boundaries. The St. Clair twins soon learn that with Truth comes power, and with power comes responsibility. Several converging dynamics are about to bring Earth to a crucial turning point-one which humanity may not survive. The twins must decide whether they will help to tip the balance towards a future of hope, or face a terrible dark void. Thrown headlong into a perilous intergalactic adventure, the two brave teenagers come face to face with the hidden forces that have shaped humanity for millennia. As they grapple with their newfound knowledge and abilities, they quickly come to realize that reality, as we have all been led to understand it, is not at all what it seems...