After tragedy strikes their family, Emily and Navin move with their mother into the old, mysterious home of their great grandfather. On their first night in the strange house, Emily and Navins mom is kidnapped by a tentacled creature. Determined to rescue her, Emily and Navin are led into a world of robots, talking animals, flying ships, new friends... and enemies. Emily learns that she is a Stonekeeper and essential to the survival of this world, and that her incredible story is only just beginning.