Life On This Planet

By 2422, humankind has achieved an ecotopian climate-positive future. There's zero conflict and zero waste throughout the whole world. But, when a young girl starts having mysterious visions of a walled city, it might signal the ancient return of something threatening this ideal. Can humans escape their nature, or will they return to their old patterns and behaviours?
Zee, a quiet and industrious young girl, begins to have vivid dreams and visions of a walled city and a mysterious red book when she turns fifteen. She embarks on a dangerous training programme, meeting other teenagers from around the planet, navigating deep sea trenches, black holes, and a new romance whilst trying to uncover an ancient mystery surrounding quantum entanglement. Will she solve it to save her pet squid and the planet?
When millions of Earth's populations left four hundred years ago seeking a new planet to colonise, it paved the way for Earth to stabilise and thrive. But what happened to those people? Why has there been no contact? Are the visions sent from the ancient humans who left planet Earth?
Zee quickly learns that her newfound independence is not without its challenges. Some of which might not be from this planet.