Twins Roman and Rosie embark on an unexpected magical adventure when a sandcastle they have built comes alive. It is called Sandy Castle. With Sandy's magic, Roman and Rosie travel to Sand Kingdom where everyone is busy saving the world in its fight against climate change. With the right condition and secret recipe, children all over the world can build and stir their magical friend Sandy Castle to help save the world. This book is the perfect introduction in early education for young children to care about the environment and human impact in fun and adventurous way.